Math, asked by harshansknspmc, 9 months ago

PROVE THAT:- SIN20* X SIN40* X SIN80*= ROOT3/8

Answers

Answered by audibarfa2004

1

Answer:

√3/8

Step-by-step explanation:

we know that sinø sin (60-ø)sin(60+ø)=sin3ø/4 so it can be written as sin(3×20)/4=sin(60)/4=√3/8

Answered by rohitrs0908

1

Answer:

Step-by-step explanation:

sin20° × sin40° × sin80°

sin20° × sin(60-20)° × sin(60+20)°

sin3(20)/4

sin60/4

=√3/8

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