If xsin30ocos60o = sin45cos45, then the value of x is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e 2.
| Understanding/Application |
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xsin30cos60 = sin45cos45 sin30 = 1/2 cos60 = 1/2 sin45 = 1/√2 cos45 = 1/√2 |
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x(1/2)(1/2) = 1/√2(1/√2) x/4 = 1/2 x = 4/2 x = 2 |