Find the value of Sin²30°+Sin²45°+Sin²90°
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Answer:
Step-by-step explanation:
Given that,
sin²30° + sin²45° + sin²90°
= ( 1/ 2 )² + ( 1 / √2 )² + ( 1 )² (∵sin30°= 1/2, sin45°=1/√2,sin90°= 1 )
= ( 1/4 ) + (1/2 ) + ( 1 )
= ( 1 + 2 + 4 ) / 4
= 7 / 4 is the answer.
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