what is the value of sin²30+coz²30
Answers
Answered by
5
Answer:
1
Step-by-step explanation:
sin 30° = 1 / 2
sin²30° = ( 1 / 2 )² = 1 / 4
cos 30° = √3 / 2
cos²30° = ( √3 / 2 )² = 3 / 4
sin²30° + cos²30°
= ( 1 / 4 ) + ( 3 / 4 )
= ( 1 + 3 ) / 4
= 4 / 4
= 1
Answered by
4
Answer:
sin²30+sin²60
=1/2+√3/2
√3+1÷2
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