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If 0 le x le 3pi , 0 le y le 3pi and cos...

If `0 le x le 3pi , 0 le y le 3pi` and `cos x cdot sin y = 1` , then the possible number of ordered pairs (x , y) is

A

6

B

12

C

8

D

15

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The correct Answer is:
A
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PATHFINDER-TRIGONOMETRIC EQUATION AND INVERSE-QUESTION BANK
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  12. The no. of solution(s) of the equation log(cosx) sinx + log(sinx) cosx...

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  13. The set of real values of k for which x^2 - kx + sin^-1 (sin 4) gt 0 f...

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  15. The general solution of the equation : sum(r =1)^n cos(r^2 x) sin(r x)...

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  20. If theta in [0 , 5pi] and r in R such that 2 sin theta = r^4 - 2r^2 + ...

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