Pheromones are substances that animals, including insects, utilise to communicate with one another. These chemical messages are sent by insects to find food, warn others of predators, and attract mates (mainly by male). Traps can be used to track certain agricultural pests by using particular pheromones.
If Sinθ + Cosθ =√2 Cos(90 -θ ), then find the value of Cotθ ?
...If sin(x + y) = 3/5 and cos(x - y) = 12/13, where x, y ∈ [0, π/2], find sin(2x) + sin(2y).
A point P is 15 meters away from the base of a building. The angle of elevation to the top of the building is 60°, while the angle of elevation to the ...
If 7sin² ϕ + 3cos² ϕ= 4, then find the value of ϕ ?
If cot2A = tan(A+6˚ ) , find the value of A? Given that 2A and A+6˚ are acute angles.
If 2cosθ + 8sin2θ = 11, where 0o < θ < 90o, then find the value of cot θ.
If sin(x + y) = 1 and sin(x - y) = (1/2), then what is the value of sinx cosx + 2sin2y + cos2y?
If tan A = 
, find the va...
