Math, asked by vermakavya9941, 2 months ago

sinpi/18sin5pi/18sin7pi/18

Answers

Answered by XxAngelicSoulxX

2

Step-by-step explanation:

Given,

Given,k = sin π/18 sin 5π/18 sin 7π/18

= sin π/18 sin 5π/18 sin 7π/18k

= sin 10° sin 50° sin 70° {since π/18

= 180°/18

= 10°}k

= (1/2) [2 sin 10° sin 50°]

=sin 70°

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