Math, asked by chimu7699, 1 year ago

Sin42 cos48 +sin48 cos42 ev
alute

Answers

Answered by harshitha100

2

answer is
sin(A+B)=sinAcosB+cosAsinB
from question,
sin(42+48)=1

Answered by bhaveshvk18

4

hey...

sin (A+B) = sinA.cosB + sinB.cosA
sin42°.cos48° + sin48°.cos42°
sin(42+48) = sin90° = 1

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