Aspire Faculty ID #9471 · Topic: NIMCET 2020 · Just now
NIMCET 2020

The value of sin 10°sin 50°sin 70° is

Solution

sin10° sin50° sin70°
= sin10° sin(60°−10°) sin(60°+10°)
= 1/4 sin3x10°
=1/4x1/2=1/8

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