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What is the value of x if tan 3 x equals to sin45 degree ×cos 45 degree +sin 30 degree ?

What is the value of x if tan 3 x equals to sin45 degree ×cos 45 degree +sin 30 degree ?

Grade:10

1 Answers

Abhrajyoti Kundu
13 Points
3 years ago
x=15 degree
rt(2)*1/sqrt(2)+1/2=1/sqsin45 degree ×cos 45 degree +sin 30 degree
=1/2+1/2
=1
tan 3x=tan45 degree
so, x=15 degree

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