Math, asked by anuradhakuamri17, 8 months ago

sin 40°cos20°+cos40°cos20°

Answers

Answered by jaswanth2906

2

step-by-step explanation:

sin(A+B)= sinAcosB+ cosAsinB

sin(20°+40°)

=sin60°

=√3/2

Answered by SANDEEPCHANDRAKAR

0

ANSWER IS ZERO

COS20°(SIN40°+COS40°)

COS20°(SIN(90-50)°+COS40°)

COS20°(COS50°+COS40°)

COS20°(COS90)

COS20°(0)

===0Answer

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