The line passing through point (-3,1) and point (x,5) is parallel to the line passing through point (-2,-1) and point (6,3). What is the value of x?
1). -5
2). -2
3). 2
4). 5
5. The value of sin2 15° + sin2 20° + sin2 25° + ….. + sin2 75° ---
7. ΔABC is right angled at B. If ∠A = 60°, then what is the value of Cot C?
8. The least value of 2 sin2 θ + 3 cos2 θ is
9. If $Cosec \theta $ = $\frac{25}{7}$ , then what is the value of $Cos \theta $?
10. If $sin17^{0}$ = $\frac{x}{y}$, then the value of $(sec17^{0} - sin 73^{0})$ is