Math, asked by Kingno1, 1 year ago

solve :- cos¢ + sin¢ = √2 , then the value of ¢ is

Answers

Answered by shahnawaz1232
0
cos 45+sin 45
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Answered by TheLifeRacer
1
Hey !!

⏭ cos¢ + sin¢ = √2

cos¢/√2 + sin¢/√2 = √2/√2 (°•° divided throughout by √2)

cos¢×cos45° + sin¢ × sin45° = 1

•°• cosA ×cosB + sinA×sinB = cos(A-B)

similarly

=> cos(¢ - 45° ) = 1

= cos(¢ - 45° ) = cos0°

= ¢ = 45° =π/4


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