If the ordered pair (x,y) is the solution of the equation.?

0 ⤊

2(cos A)x+5(sin A)y=sec A ;
2(sin A)x-5(cos A)y=cosec A
Then,the value of 'x' is equal to
a)1
b)2
c)4cos A
d)sec A

2007-04-05 07:42:34 · 2 answers · asked by RiNkU 1 in Science & Mathematics ➔ Mathematics

The answer is still x = 1.
There is no need to ask a question several times.

2007-04-05 08:07:34 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Multiply the top equation by cosA and the bottom one by sinA and add them together.

You get 2x = 2.

So x = 1.

2007-04-05 19:17:46 · answer #2 · answered by Curt Monash 7 · 0⤊ 0⤋