Math, asked by Adwanineeraj, 1 year ago

if sin B =1/2 show that 3cos b-4coscube b=0

Answers

Answered by lostgirl22

6

firstly you can find the values by Pythagoras thm. Then u can put the values
or
by using the formula
cos3 a.

lostgirl22: diya

lostgirl22: Punjab

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