evalute sin60°cos30°+sin30°cos60°
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Answered by
1
Step-by-step explanation:
Sin 60 = root 3 /2
cos 30 = root 3 /2
sin 30 = 1/2
cos 60 = 1/2
= (root 3 /2 ) (root 3 / 2) + (1/2) (1/2)
= 3/4 + 1/4
= 4/4
= 1
sin 60 + 30 = 90
where sin 90 = 1
Answered by
0
Answer:
1
Step-by-step explanation:
It is in the formula of sin(a+b)
sinacosb+cosasinb=sin(a+b)
sin30cos60+cos30sin60=sin(60+30)
=sin90=1.
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