Question

2sin 45° cos 45° = sin 90°
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Answer 1

Answer:

L.H.S. = 2 sin 45° cos 45° = 2 × (1/√2) × (1/√2) = (2 × 1/2) = 1 R.H.S. = sin 90° = 1 L.H.S. = R.H.S

Answer 2

Answer:

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Step-by-step explanation:

$2sin 45° \times cos 45° = sin 90°$

$=> 2× \frac{1}{√2} × \frac{1}{√2} = 1$

$=> \frac{2}{ \sqrt{2} } \times \frac{1}{ \sqrt{2} } = 1$

$=> \frac{2}{2} =1$

$=> 1=1$

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