Math, asked by Tushar041, 8 months ago

plz answer fast........

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Answered by tennetiraj86

18

Answer:

answer for the given problem is 1/3

Step-by-step explanation:

formulae are used :

Cos(A+B)= Cos ACosB-SinA SinB

Cos(A-B)= Cos ACosB+SinA SinB

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Answered by Anonymous

0

Answer:

answer attached in photo

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