Question
Select the number from the given option that can replace
the question mark (?) in the following series: 18, 19, 23, 32, ?, 73, 109Solution
18 + 1² = 18 + 1 = 19 19 + 2² = 19 + 4 = 23 23 + 3² = 23 + 9 = 32 32 + 4² = 32 + 16 = 48 48 + 5² = 48 + 25 = 73 73 + 6² = 73 + 36 = 109 Â
If cos θ + sec θ = √5, then the value of cos³ θ+ sec³ θ is:
If 17sin A = 8, where 0
If A and B are complementary angles, then the value of-
sin A cos B + cos A sin B – tan A tan B + sec 2
If (3cos A - sin A) = 2 cos (90° - A), then find the value of cot A.
What is the simplified value of the given expression?
2(sin² 15° + sin² 75°) + 4sin 30° - (2sec 60° + cot 45°)
If sec2 θ = 4, then find the value of sin2 θ + cosec (90 - θ) where 0o < θ < 90o.
...- Find the simplified value of the expression:sin 2 45 o  + sin 2 60 o  - (1/3) X tan 2 60 o
If sin(x-y) = 1  and cos(x+y) = 1 /√2  then what is measure of angle x.
