Question

if sin20°/sin theta =tan 20 then the value of theta is??
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Answer 1

Step-by-step explanation:

cos(20°+θ)=sin30°

⇒cos(20°+θ)=cos(90°−30°)

⇒20°+θ=60°

⇒θ=40°

Hence, the answer is 40°.