Question
Find the wrong number in the given number series.
26, 38, 60, 110, 206, 398Solution
ATQ, 26 + 12 = 38 38 + 24 = 62 62 + 48 = 110 110 + 96 = 206 206 + 192 = 398 62 will come in the place of 60.
What is the value of sin(B – C) cos(A – D) + sin(A – B) cos(C – D) + sin(C – A) cos(B – D)?
The value of sec2 45˚ + 2 tan 135˚ is –
If cos² x + sin x = 5/4, then find the value of 'sin x'.
If sin α + cos β = 2 (0˚ ≤ β < α ≤ 90˚), then sin[(2α + β)/3] =?
If cos²α + cos²β = 2, then the value of tan⁴α + sin⁸β is
If tan α = 1/2, tan β = 1/3, then find α + β.
- If sin (a + b) = (√3/2) and cos (a – b) = (√3/2), then find sin a.
The Value of (sin38˚)/(cos52˚) + (cos12˚)/(sin78˚) - 4cos²60˚ is