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# CBSE Class 10 Answered

If tan 7theta=cot(5theta–30degree),both angles are acute angles,find the value of theta
Asked by shethdhrumil0 | 20 Dec, 2019, 12:09: AM
Expert Answer
tan 7 theta = cot (5theta – 30 degree)

cot (90 - 7θ) = cot (5θ - 30)
90 - 7θ = 5θ - 30                   cot (90 - θ) = tan θ
120 = 12θ
θ = 10
Answered by Sneha shidid | 20 Dec, 2019, 12:39: PM

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