tan theta/tan(90°-theta) + sin(90°-theta)/cos theta
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Answered by
2
Answer:
sec²θ
Step-by-step explanation:
tan(90-θ) = cotθ and sin(90-θ) = cosθ
∴ tanθ/tan(90-θ) + sin(90-θ)/cosθ
= tanθ/cotθ + cosθ/cosθ
= tanθ÷ 1/tanθ + 1
= tan²θ +1
= sec²θ
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