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All trigonometric function formula |
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Answer» Last page of ncert there are all formulas of trigonometry Pl?? search on Google sin2 θ + cos2 θ = 1.sin (–θ) = –sin θ, andcos (–θ) = cos θ.sin (θ + 2π) = sin θ, andcos (θ + 2π) = cos θ.cos θ = sin (π/2 – θ)sin θ = cos (π/2 – θ) |
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