A wire supporting a pole is fastened to it 20 feet from the ground and to the ground 15 feet from the pole. Determine the length of the wire and the angle it makes with the pole.
A). 24 ft, 36.87°
B). 24 ft, 53.13°
C). 25 ft, 36.87°
D). 25 ft, 53.13°
1. What is the value of [(sin4x + sin4y) × tan(2x – 2y)] / (sin4x – sin4y)?
4. If sin 1° = p and sin 89° = q, then which one of the following is correct?
6. ΔPQR is right angled at Q. If ∠P = 60°, then find the value of (cotR + √3/2).
7. If $sin\frac{\pi x}{2}$ = $x^{2} - 2x +2$, then the value of x is
9. What is the value of $Cot 45^{0} + Cosec 60^{0}$
10. The sides of a triangle are 195, 157 and 210, respectively. What is the area of the triangle?