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Find the value of x in the following: tan x = sin45° cos45° + sin30° - Mathematics

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Question

Find the value of x in the following: tan x = sin45° cos45° + sin30°

Sum
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Solution

tan x = sin45° cos45° + sin30°

⇒ tan x = `(1)/sqrt(2) xx (1)/sqrt(2) + (1)/sqrt(2)`

⇒ tan x = `(1)/(2) + (1)/(2)`
⇒ tan x = 1
⇒ tan x = tan 45°
⇒ x = 45°.

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Chapter 27: Trigonometrical Ratios of Standard Angles - Exercise 27.1

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Frank Mathematics [English] Class 9 ICSE
Chapter 27 Trigonometrical Ratios of Standard Angles
Exercise 27.1 | Q 8.4
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