Question
What is the minimum annual contribution required in a
PPF account?Solution
A PPF account requires a minimum annual contribution of ₹500 to keep it active. Failing to contribute the minimum can lead to account deactivation and penalties for reactivation.
- Simplify the following trigonometric expression:
13cos 63 o cosec 27 o - 5cot 56 o cot 34 o sin2 4˚ + sin2 6˚ + sin2 8˚ + sin2 10˚ + ……… + sin2 86˚ =?
If 2cosθ + 8sin2θ = 11, where 0o < θ < 90o, then find the value of cot θ.
What is the value of [tan2 (90 – θ) – sin2 (90 – θ)] cosec2 (90 – θ) cot2 (90 – θ)?
...If (2sin A + cos A) = 3sin A, then find the value of cot A.
If cos(2θ) = 1 - 2sin²(θ) and tan(θ) + cot(θ) = k, find the value of k when sin(θ) = 3/5.
In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find out the value of cos A?
- If sin (3A − 4B) = (1/2) and cos (A + B) = (√2/2), where 0° < A, B < 90°, then find the value of ‘A’.
If 9 sinx + 40 cosx = 41 then find tanx.
- If secx – tanx = 1/√3, then the value of secx × tanx is: