For any angle -cos-cos- -sin-sin-

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Values of Trigonometric Ratios

For any angle...

Question

For any angle $θ,$
$cos (- θ) = cos θ &$
$sin (- θ) = - sin θ$

False

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True

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Solution

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Similar questions

θ, sin (π + θ) =

cos (π + θ) =

θ

{sin}^{2} θ + {cos}^{2} θ

θ, cos (θ - 3 π) =

sin (θ - 3 π) =

The value of θ for which 2cos²θ + sinθ - 2 = 0. 0^o < θ ≤90^o is:

θ

s i n^{2} θ + c o s^{2} θ

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