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All trigonometric function formula

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All trigonometric function formula
  • 3 answers
Last page of ncert there are all formulas of trigonometry

???. Pragati 7 years ago

Pl?? search on Google

???. Pragati 7 years ago

sin2 θ + cos2 θ = 1. sin (–θ) = –sin θ, and cos (–θ) = cos θ. sin (θ + 2π) = sin θ, and cos (θ + 2π) = cos θ. cos θ = sin (π/2 – θ) sin θ = cos (π/2 – θ)
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