Question
How many students from Delhi who got scholarship in the
years 2013, 2014 and 2017 together? Study the following charts carefully and answer the questions that follow: <imgSolution
In 2013: 20% of 400= 80 In 2014: 10% of 100= 10 In 2017: 25% of 400 = 100 Therefore, total = 80+ 10 + 100 = 120
If cosB = sin(1.5B - 15°), then find the measure of 'B'.
- If sin A = 1/2, then what will be the value of cot² A?
If 2cosA + secA = 2√2 , 0° < < 90°, then the value of 2(sec 4 A + cosec 4 A) is:
If cos θ + sec θ = √5, then the value of cos³ θ+ sec³ θ is:
Find the value of sin 30°.
If X = 15°, find the value of:
sin²(4X) + cos²(3X) - tan²(2X)- If sin 2a = (3/4), then find the value of (sin a + cos a).

- If sin 2a = (1/2), then find the value of (sin a + cos a).
If 10sin²x + 6cos²x − 8 = 0, then find the value of sinx, given that 0° < x < 90°.