What is the value of sin34°cos236° - sin56°sin124°cos28°cos88° + cos178°sin208° = ?
- 2
- 1
2
1
tan54° can be expressed as
sin9° + cos9°sin9° - cos9°
sin9° - cos9°sin9° + cos9°
cos9° + sin9°cos9° - sin9°
sin36°cos36°
C.
tan54° = tan45° + 9°= tan45° + tan9°1 - tan45°tan9°= 1 + tan9°1 - tan9°= 1 + sin9°cos9°1 - sin9°cos9°= cos9° + sin9°cos9° - sin9°
If p = Xcosθ - Ysinθ, q = Xsinθ + Ycosθ and p2 + 4pq + q2 = AX2 + BY2, 0 ≤ θ ≤ π2. What is the value of θ ?
π2
π3
π4
π6
If p = Xcosθ - Ysinθ, q = Xsinθ + Ycosθ and p2 + 4pq + q2 = AX2 + BY2, 0 ≤ θ ≤ π2
What is the value of A ?
4
3
-1
0
It is given that cosθ - α = a, cosθ - β = bWhat is cosα - β = ?
ab + 1 - a21 - b2
ab - 1 - a21 - b2
a1 - b2 - b1 - a2
a1 - b2 + b1 - a2
It is given that cosθ - α = a, cosθ - β = b. What is sin2α - β + 2abcosα - β = ?
a2 + b2
a2 - b2
b2 - a2
- (a2 + b2)
If sinα + cosα = p, then what is cos22α = ?
p2
p2 - 1
p22 - p2
p2 + 1
What s the value of sin-145 + sec-154 - π2 = ?
π
If sin-12p1 + p2 - cos-11 - q21 + q2 = tan-12x1 - x2, then what is x = ?
p + q1 + pq
p - q1 + pq
pq1 + pq
p + q1 - pq