Math, asked by rinogeorgeal4618, 1 year ago

Sin x + cos x equal to root 2 sin x then tan x equal to what

Answers

Answered by souravsarkar045
0

hey mate,

given that,

               sinx + cosx = √2

we know,

                 sin²x + cos²x = 1

             ⇒ (sinx + cosx)² - 2sinxcosx = 1

            ⇒ (√2) - sin(2x) = 1          [ ∵ 2sin∅cos∅ = sin2∅ ]

            ⇒ 2 - sin(2x) = 1

           ⇒ sin(2x) = 1

           ⇒ sin(2x) = sin90°

           ⇒ 2x = 90°

           ⇒ x = 45°

∴ tanx = tan45°

           = 1

if it helps you plz mark as brainliest.

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