Question

sin 70° +cos 40°/
cos 70º+sin40°​

Answer 1

Answer:

Ur's answer is√3

Step-by-step explanation:

Sin 70°+Cos 40°/Cos 70°+Sin 40°

Sin 70°+ Sin (90°-50°) /Cos 70°+Cos (90°-50°)

Sin 70°+Sin 50°/Cos 70°+Cos 50°

Sin(60+10)+sin(60-10)/cos(60+10)+cos(60-10)

Sin(60+10)+sin(60-10)/cos(60+10)+cos(60-10)2sin60×cos10/2cos60×cos10

Sin(60+10)+sin(60-10)/cos(60+10)+cos(60-10)2sin60×cos10/2cos60×cos10√3/2/1/2=√3

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