Sine rule for a triangle states that
A). a/sin A = b/sin B = c/sin C
B). a/sin A + b/sin B + c/sin C
C). a/sin A + b/sin B + c/sin C
D). 2a/sin A = 2b/sin B = 2c/sin C
sin A/a = sin B/b = sin C/c
sin A/a = sin B/b = sin C/c
1. If $cos\theta $ = $\frac{p}{\sqrt{p^{2} + q^{2}}}$ ,then the value of $tan\theta $ is :
2. $sin^{2}5^{0}+sin^{2}6^{0}+........+sin^{2}84^{0}+sin^{2}85^{0}$ =
3. If $\frac{(1+cosA)}{2}$ = x, then the value of x is
4. Find the value of (sin θ + cos θ tanθ)/cos θ
5. One degree on the equator of the earth is equivalent to _____ in time.
6. What is the value of (2sec 45o + tan 30o)?
7. What is the value of $Cot 60^{0} - Sec 45^{0}$ ?
8. If cos 21° = x/y, then cosec 21° cos 69° is equal to