If √($cosec^{2}A$ - 1) = x, then the value of x is
1). tan A
2). sin A
3). cos A
4). cot A
1. If x = √5 + 2, then the value \(\frac{{2{x^2} - 3x - 2}}{{3{x^2} - 4x - 3}}\) is equal to
2. ABC is a triangle in which $DE\parallel BC$ and AD:DB = 5:4. Then DE:BC is
4. If x4 + (1/x4) = 34, then what is the value of x3 – (1/x3)?
5. ABCD is a cyclic parallelogram. The angle $\angle B$ is equal to :
6. If $\frac{\sqrt{5+x}+\sqrt{5-x}}{\sqrt{5+x}-\sqrt{5-x}}$ = 3. , then what is the value of x ?
9. If (a6 – b6) = 8(a4 + b4 + a2b2), then find the value of (a2 – b2).
10. The centroid of an equilateral triangle ABC is G and AB = 10 cm. The length of AG (in cm) is :