Let \ACB be a triangle with right-angle at C. Let AB = 29 units, BC = 21 units and \angleABC = \theta. Then \cos^2\theta-\sin^2\theta =

TS EAMCET 4-Aug-2021 Shift 1 Question Paper

Section: Mathematics

Question : 21 of 160

Marks: +1, -0

Let ACB be a triangle with right-angle at C. Let AB = 29 units, BC = 21 units and ∠ABC = θ. Then cos2θ−sin2θ =

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