Q17 of 61 Page 217

(cos2θ – 1)(cot2θ + 1) + 1 =

We know that,




Now,


⇒


∵


And


⇒


⇒


⇒


Hence,

More from this chapter

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15

(1 + tan2θ)(1 – sinθ)(1 + sinθ) =

 16

(1 + cot2θ)(1 – cosθ)(1 + cos θ) =

 18

=

 19

=