If sin θ = cosθ
Find 2tanθ + cos²θ
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lalitc2502:
What happened to the cos theta in the denominator when you were adding 2/cos theta + sin theta?
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sinθ=cosθ
sinθ/cosθ=1
tanθ=1
θ=45 degree
2tan^2θ+cos^2θ
=2(1)^2+cos^2 45
=2+(1/root2)^2
=2+1/2
=3/2
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