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cos^(2)(125^(@)-x)-cos^(2)(55^(@)+x)=...

`cos^(2)(125^(@)-x)-cos^(2)(55^(@)+x)=`

A

-1

B

0

C

1

D

2

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-TRIGONOMETRIC RATIOS-PRATICE SHEET (EXERCISE) (LEVEL-I(MAIN) (SINGLE ANSWER TYPE QUESTIONS)
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  12. x = asec^(3) theta tan theta , y = tan^(3) theta sec theta then sin^(2...

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