If tan2x - 3sec2x + 3 = 0, then the value of x (0 ≤ x ≤ 90o) is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e 0o.
| Understanding/Application |
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tan2x - 3sec2x + 3 = 0 tan2x - 3(1 + tan2x) + 3 = 0 tan2x - 3 - 3tan2x + 3 = 0 - 2tan2x = 0 tanx = 0 |
| x = 00 (0 ≤ x ≤ 900) |