ΔXYZ is right angled at Y. If m∠Z = 60°, then Cosec X =

Tan 45° + Cosec 60° =

∆ABC is right angled at B. BD is an altitude. AD = 4 cm and DC = 9 cm. What is the value of BD (in cm)?

At what point does the line 2x - 3y = 6 cuts the X axis?

Point A (4 , 2) divides segment BC in the ratio 2:5. Co-ordinates of B are (2 , 6) and C are (7 , y). What is the value of y?

What is the reflection of the point (6, -3) in the line y = 2?

The 5th and 9th term of an arithmetic progression are 7 and 13 respectively. What is the 15th term?

The sum of a non-zero number and 4 times its reciprocal is 17/2. What is the number?