Question
Which of the following is a measure of central tendency?
Solution
Mean is the arithmetic average, representing the central point of the dataset.
- If sin (a + b) = (√3/2) and cos (a – b) = (√3/2), then find sin a.
If α means +, β means -, ɣ means x, θ means ÷ then 30 θ 10ɣ 5α 10β20 is
If √3 tan x = 3, then the value of x:
- If cos θ = (4x² – 1)/(1 + 4x²) then find the value of sin q.
A tower is 60 meters high. From a point on the ground, the angle of elevation of the top of the tower is 30°. Find the distance of the point from the b...
If 0 ≤ θ ≤ 90°, and sin(2 θ +50°) = cos (4 θ + 16°), then what is the value of θ (in degrees)?
tan 4˚ × tan 43˚ × tan 47˚ × tan 86˚ = ?

Simplify: sin 780° sin 480° + cos 120° sin 30°