Prove that 1+(cot^2 theta-tan^2 theta) cos^2 theta
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1
Answer:
refer to the attachment
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Answered by
2
Step-by-step explanation:
LHS = tan
2
θcos
2
θ
=
cos
2
θ
sin
2
θ
×cos
2
θ
=sin
2
θ
=1−cos
2
θ
=RHS
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