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If x = 4cosA + 5sinA and y = 4 sinA - 5 ...

If x = 4cosA + 5sinA and y = 4 sinA - 5 cosA, then the value of `x^2+y^2` is :
यदि x = 4cosA + 5sinA तथा y = 4 sinA - 5 cosA है, तो `x^2+y^2` का मान क्या होगा ?

A

41

B

0

C

16

D

25

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PINNACLE-TRIGONOMETRY-EXERCISE
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  15. The expression 3sec^2 theta tan^2 theta+ tan^6 theta-sec^6 theta is eq...

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