\cos 80° + \cos 59° \cdot \csc 31° = ________.... | VSA 1m | Maths | SuperPadhai

Introduction To Trigonometry > Question

VSA1 markYear: 2020EasyCBSE Class 10

trigonometrycomplementary-angles

Question

cos 80° + cos 59° \cdot csc 31°

= ________.

Solution

1

\frac{c o s 80°}{s i n 10°} + cos 59° \cdot csc 31° = \frac{c o s 80°}{s i n 10°} + \frac{c o s 59°}{s i n 31°} = 1 + 1 = 2

+1 mark

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