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Question
The value of 5 sin2 90° – 2 cos2 0° is ______.
Options
– 2
5
3
– 3
Solution
The value of 5 sin2 90° – 2 cos2 0° is 3.
Explanation:
We have,
`\implies` 5 sin2 90° – 2 cos2 0°
`\implies` 5 × (1)2 – 2 × (1)2 = 5 – 2 = 3
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