The two buildings are 100m apart. From the top of the first building, which is 60m tall, the angle of depression to the top of the second building is 45 degrees. How tall is the second building?
If x = 107, then find the value of x(x2 - 12x + 48) ?
If x – 1/x = 9, then x3 – 1/x3 is:
If x = 15, find x5 - 16x4 + 16x3 - 16x2 + 16x - 16 = ?
if 3y-3/y=8 then find the value of y ² +1/y²
If 9x2 + 16y2 = 24xy, then find the ratio of ‘x’ and ‘y’, respectively.
If 0.125x3 +0.216y3 = 210 and 0.25x2 + 0.36y2 = 10.30 then find the value of 0.5x + 0.6y.
1/3 + 1/15 + 1/35 + 1/63 + 1/99 = ?
