1 pd 5. The value of cos 30°. COS 60°- sin 30° sin 60° is * O 1)2 O2)1 O 30 4) 3/2
Answers
Answered by
1
Answer:
answer is 0
Step-by-step explanation:
cos 30 cos 60 - sin30 sin60
[root3/2 ×( 1/2) ]- [1/2 × (root3/2)]
root3/4 - root 3/4
=0
Answered by
1
Answer:
0
Step-by-step explanation:
As we know that:
cos 60° = 1/2, cos 30° = √3/2, sin 60° = √3/2, sin 30° = 1/2
Substituting all the values in the given expression,
(1/2 × √3/2) - (√3/2 × 1/2)
= √3/4 - √3/4
= 0
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