Mathematics - 19 July 2007

Write sin(sin^-1 (x) + cos^-1 (y)) as an algebraic expression containing x and y (that is, without any trig functions).

HINT GIVEN IN BOOK:

Think of inverse trig functions.

Also: What is the easiest way or method for graphing inverse trig functions?

2007-07-19 23:42:11 · 4 answers · asked by journey 1

Find the exact value of the inverse trig functions.

(1) csc[cos^1 (-(sqrt{3}/2)]

(2) tan[sin^1(-(1/2)]

2007-07-19 23:35:11 · 4 answers · asked by journey 1

Find the exact value of the inverse trig functions.

(1) cos^-1(sin(7pi/2))

(2) tan^1(tan(2pi/3))

2007-07-19 23:31:56 · 2 answers · asked by journey 1

Find the exact value of the inverse trig function.

sin(cos^-1 (1/2))

2007-07-19 23:28:56 · 5 answers · asked by journey 1

Prove the two identities below.

I found these two to be very hard.

(1) sin(x)(sin3(x) + sin5(x)) = cos(x)(cos(cos3(x) - cos5(x))

(2) (cos(a) + cos(b))/(cos(a) - cos(b)) = - (cot(a + b)/2)(cot(a - b)/2)

2007-07-19 23:23:41 · 3 answers · asked by Sharkman 1

(cos(x) - cos5(x))/(sin(x) + sin5(x)) = tan2(x)

How do I handle trig identities that use numbers greater than 2? The above question has a 5? See my point?

2007-07-19 23:18:58 · 2 answers · asked by Sharkman 1

Please show steps of getting x in the equation
(x-1)/2=8

2007-07-19 23:16:28 · 14 answers · asked by pgath 1

How do I prove or establish trig identities with exponents higher than 2?

SAMPLES:

(1) tan3(x) = (3tan(x) - tan^3 (x))/(1 - 3(tan^2 (x))

(2) tan4(x) = (4tan(x) - tan^4 (x))/(1 - 4tan^3 (x))

2007-07-19 23:12:08 · 2 answers · asked by Sharkman 1

w=13
H=10.5
L=14

2007-07-19 22:55:01 · 4 answers · asked by darz_morre18 1

A person has 99 cows and 9 sons. Each cow has been given a number from 1 to 99 and each cow gives milk equal to its number. How will we divide cows between 9 sons so that each son gets equal amount of milk.

2007-07-19 21:30:24 · 13 answers · asked by C00L GαL 2

2/x + 8/3= 1/6 Solve for x Fractions

2007-07-19 20:44:47 · 11 answers · asked by fancy 1

2007-07-19 20:39:07 · 8 answers · asked by allan4266 1

A shopping center is rectangular, with dimensions of 660 yd by 110 yd. What is its size in acres?

72600yds (area in yds) / acres in yards is that right???

Then multiply to get rid of yards and that answer will be in acres??

2007-07-19 20:19:57 · 8 answers · asked by Anonymous

2007-07-19 19:50:19 · 2 answers · asked by Geraldine h 1

look at these steps plz:

ln y = x ln (sin x)

differentiate:
1/y dy/dx = ln (sin x) + x (1/sin x) (cos x)
------how do you go from the above line to the below line?-----
=> dy/dx = (sin x)^x (ln (sin x)) + x (cos x) (sin x)^(x-1)
= (sin x)^(x-1) (sin x ln (sin x) + x cos x)

2007-07-19 19:10:36 · 5 answers · asked by Anonymous

1) The ratio of smokers to nonsmokers on a particular flight was 2:3. Smoking passengers represented five more than 1/3 of all the passengers aboard. How many passengers were on that flight?
------------------------------------------------------------------------------------
Let's say
s:smoker ns: non smoker
s=2x ns=3x
and
s=1/3(s+ns)+5
s=1/3(5x)+5
s=5x/3+5
s=(5x+15)/3
-------------------------------------------------------------------
I got this far... but... i just do not what to do next..
Help me with next step!!!
Please~~~
Thank you ~

2007-07-19 18:28:48 · 3 answers · asked by mihye_32 1

2007-07-19 17:43:48 · 4 answers · asked by blehbleh 1

5logx=-10

2007-07-19 17:31:12 · 4 answers · asked by hllywdbabe7 1

and then eventually levels out. This is for an algebra 2 math project. I need to find a real life situation that graphs out as a square root function. Ideas please!

2007-07-19 17:28:34 · 4 answers · asked by Anonymous

Solve by factoring:

1) The rectangle has sides of and the area is 12. Find the value of x.

2 The rectangle an area of and is also equal to 10. Find the value of x.

3) The length and width of the town square are ft. and ft. because the length and width are the same the town square is a square. Find the perimeter of the town square and then evaluate for

4) The sides of a square are and and the area is 9. Find the value of x.
Find the length of each side.

5) The area of the rectangle is and is equal to . Find the sides of the rectangle.

6) The square of a number is 6 less than five times the number. Find the number.

7) If a number is multiplied by 7 more than 3 times that number, the result is 20. Find the number.

8) If 3 times the square of a number is increased by 20 less than 3 times the number, the result is the number squared. Find the number.

9) The square of a number is the same as twice the number. Find the number.

10) If 6 times a number is added to the square of the number, the result is 16. Find the number.

2007-07-19 17:11:29 · 1 answers · asked by Allen 1

it is two fractions added together. the fractions are:
2x "over" 2x+2 "plus" 1 "over" x+1
thanx

2007-07-19 17:08:02 · 9 answers · asked by B. 2

Vasco de balboa discovered the Indian Ocean??

2007-07-19 17:07:01 · 10 answers · asked by Anonymous

Two events are independent with P(A) = 0.25 and P(B) =0.6. What is the probability of A or B?

2007-07-19 16:58:39 · 5 answers · asked by sptool 2

Sin43=

a.) csc47
b.) csc43
c.) cos47
d.) cos47

2007-07-19 16:53:53 · 4 answers · asked by ckorski 1

From a window 9 meters from the ground, the angles of epression of the top and bottom of a lamp post are 30 degrees and 60 degrees, respectively.Find the height of the lamp post

2007-07-19 16:47:06 · 3 answers · asked by ckorski 1

If you don't, wouldnt it be sec2xtan2x?

But if you do, and its in a problem where u already used the chain rule, you do the chain rule again?

ex.) (sec2x)/(1+tan2x)

2007-07-19 16:44:26 · 8 answers · asked by Anonymous

closest to the origin, what is the value of x0?

2007-07-19 16:39:50 · 2 answers · asked by biomes 1

Using the rules of exponents simplify the expression

6a(-ab^-2)/-2a^2 b^-3

2007-07-19 16:37:26 · 2 answers · asked by Kristin R 2

A slot machine at a casino pays out an average of $0.90, with a standard deviation of $120. It costs a dollar to play. If gamblers play this machine 5,760,000 times in a month, what is the probability that the casino will come out ahead? Assume that the casino's total profit follows a Normal model.


a. 0.036

b. 0.964

c. 0.977

d. 0.933

e. 0.023

2007-07-19 16:33:32 · 1 answers · asked by publix_589 2

dont complain!
a.
Find a number to complete the following pattern:

0,3,14,39,?

b.
Find the operations that make each sentence true
8?8?8?8= 256
8?8?8?8=120

2007-07-19 16:23:21 · 7 answers · asked by Anonymous