Question

All IMPORTANT TRIGNOMETRY FORMULAS FOR CLASS 10th......HOPE THIS HELPS YOU

sin (90° – θ) = cos θ

cos (90° – θ) = sin θ

tan (90° – θ) = cot θ

cot (90° – θ) = tan θ

sec (90° – θ) = cosecθ

cosec (90° – θ) = secθ

sin2θ + cos2 θ = 1

sec2 θ = 1 + tan2θ for 0° ≤ θ < 90°

Cosec2 θ = 1 + cot2 θ for 0° ≤ θ ≤ 90°

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Answer 1

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Answer 2

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