(1-sin^2A)(1+cot^2a)
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Answer:
cot² theta
Step-by-step explanation:
⇒ [1 - sin²theta ] [ 1 + cot² theta]
⇒ [ 1 - sin² theta ] [ 1 + cos² theta/sin² theta ]
⇒ [ 1 - sin² theta] [ sin² theta + cos² theta/sin² theta ]
⇒ [ 1 - sin² theta] [ 1/sin² theta ]
⇒ [ cos² theta] / [ sin² theta ]
⇒ [ cot² theta ]
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