If a3+1a3 = 2, then the value of a2+1a?

The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:

If sinθ x cosθ = 1⁄2 . The value of sinθ ­- cosθ is where 0°< θ< 90°

The length of the two adjacent sides of a rectangle inscribed in a circle are 5 cm and 12 cm respectively. Then the radius of the circle will be

Incentre of Δ ABC is I. ∠ABC = 90° and ∠ACB = 70°. ∠AIC is

If in a triangle ABC, Sin A = Cos B then the value of Cos C is

AD is the Median of Δ ABC. If O is the centroid and AO = 10 cm then OD is

Possible length of the three sides of a triangle are :­