MCQ
If 2x + 1 > 5 then which is true?
- Ax > 4
- Bx < 4
- Cx > 2
- Dx < 2
Solution:
2x + 1 > 5
⇒ 2x > 5 - 1
⇒ 2x > 4 ⇒ x > 2.
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Area of the triangle formed by the points ((a + 3)(a + 4), a + 3), ((a + 2)(a + 3), (a + 2)) and ((a + 1)(a + 2), (a + 1)) is:
If $2\tan\alpha=3\tan\beta$ then $\tan(\alpha-\beta)=$
$\frac{\sin2\beta}{5-\cos2\beta}$
$\frac{\cos2\beta}{5-\cos2\beta}$
$\frac{\sin2\beta}{5+\cos2\beta}$
None of these
Angle made by line with measured anticlockwise is called inclination of the line: