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Trigo trigonometric ratio of complementary angle

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Trigo trigonometric ratio of complementary angle

Posted by Anamika Singh 6 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 7 months ago

Trigonometric Ratios Of Complementary Angles

We know complementary angles are pair of angles whose sum is 90°
Like 40°, 50°, 60°, 30°, 20°, 70°, 15°, 75° ; etc,
Formulae:
sin (90° – θ) = cos θ, cot (90° – θ) = tanθ
cos (90° – θ) = sin θ, sec (90° – θ) = cosec θ
tan (90° – θ) = cot θ, cosec (90° – θ) = sec θ

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