plese answer all 3 questions
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Answer:
6) 9
Explanation:
= 9sec²theta - 9 tan²theta
=9(sec²theta-tan²theta)
=9(1). -->( sec²theta-tan²theta=1) from formula
=9.
5) ans: 45°
explanation: sin theta=cos theta
sin45°=1=cos 45°
hence theta=45°
4) ans: 5
explanation:
=5 cosec²theta-5 cot²theta
=5(cosec²theta-cot²theta)
=5(1). (cosec²theta-cot²theta=1) from formula
=5
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