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प्रश्न
Verify each of the following:
(iv) `2 sin 45^0 cos 45^0`
उत्तर
`2 sin 45^0 cos 45^0`
=`2xx1/sqrt(2) xx1/sqrt(2) =1`
Also, sin `90^0 =1`
∴ `2 sin 45^0 cos 45^0 = sin 90^0`
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