evaluate sin 60°.cos30°+sin30°.cos60° what is the value of sin (60°+30°) what is your answer
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Answer:
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
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 sin90 =1
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Answer:
Step-by-step explanation:
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