The exact trig function value with rational denominator for csc 45 degrees is:
a). square root 2
b). 1
c). 2 square root 3 over 3
d). 1/2
2007-04-28 09:18:53 · 6 answers · asked by Maria J 1 in Science & Mathematics ➔ Mathematics
The answer is the sqaure root of 2. Csc is defined as the hypoteneuse/the opposite side. In a 45-45-90 triangle, the hypoteneuse is the square root of 2, while the opposite side is one. Therefore, (square root of 2/1) = the square root of two.
2007-04-28 09:24:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The 45 degree angle trangle in Trig is simple. The sides are 1 & 1& and hypotenuse is Square root of 2; such that csc is reciprocal of sin value. csc 45 degrees =the Square root of 2
2007-04-28 16:30:22 · answer #2 · answered by Ke Xu Long 4 · 0⤊ 0⤋
cosec 45 degree = 1/Sin (45degree)
since sin45 = 1/(square root 2)
so, csc 45 = square root 2.
answer is option a.
2007-04-28 16:23:35 · answer #3 · answered by ankit41 3 · 0⤊ 0⤋
it seems you are in the phase of learning where everything is a blur, use the reference
csc is cosecant, it is the inverse of the sine
a is the answer
2007-04-28 16:27:11 · answer #4 · answered by Durai 3 · 0⤊ 0⤋
csc45=1/sin
sin45=sqrt2/2
csc45=1/(sqrt2/2)=2/sqrt2=sqrt 2=answer a
2007-04-28 17:00:44 · answer #5 · answered by Matia 3 · 0⤊ 0⤋
How about changing your headline? It is getting stale. Answer: a
2007-04-28 16:23:57 · answer #6 · answered by cattbarf 7 · 0⤊ 0⤋