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The idiom "hit the nail on the head" means to be exactly right or to describe the main issue precisely.
If (a2 + 1/a2 ) = 66, then find the value of (a3 – 1/a3 ).
Average marks scored by Vineet in five subjects are 60. The average marks scored by him (excluding his highest and lowest marks) are 50 and lowest marks...
Find the value x2 + y2, if xy = 13 and x + y = 7.
If 27 (x+y)³ − 8(x−y)³ = (x + 5y) (Ax² + By² + Cxy), then what is the value of (A+B-C)?
If 4x² + y² = 40 and x y = 6, then find the value
of 2x + y?
If x = 6 + 2√5, then the value of √x - (1/√x)?
If (4x + 3y): (28x - y) = 1: 5, then what is the value of (3x 2 + 4y 2 ): (7x 2 + 2y 2 )?