Math, asked by gautam5953, 10 months ago


Plove that
6(cos10A+sin10A) -15 ( cos68A+Sin8A ) +
10 (Cos6A+sin6A) =1​

Answers

Answered by saikrishnarao
0

Answer:

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Answered by mruthul
0

Step-by-step explanation:

6(cos10A+sin10A) -15 ( cos68A+Sin8A ) + 10 (Cos6A+sin6A) =1​

6(1)-15(1)+10(1)=1 [sina+cosa=1]

6-15+10=1

1=1

hence proved

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