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As AB is diameter So Angle ACB = 90 degree ; Hence in right angle Δ ABC, AB 2 = AC 2 + BC 2 = 82 + 152 = 64 + 225 = 289 AB = 17 cm = 2R So R = 17/2 cm Hence, Area of circle = πR 2 = π (17/2) 2 = 72.25π cm 2
If (x - 1/x)2 = 3, then the value of x6 + 1/x6 equals
If x3 + y3 + z3 = 3(1 + xyz), P = y + z – x, Q = z + x – y and R = x + y – z, then what is the value of P...
If 0 ≤ θ ≤ 90°, and sec107 θ + cos107 θ = 2, then. (secθ + cosθ) is equal to:
If x4 + 2x3 + ax2 + bx + 9 is a perfect square, where a and b are positive real numbers, then the value of a and b are
The value of x which satisfies the equation (x+a2+2c2) / (b+c) + (x+b2 +2a2) / (c+a) + (x+c+2b2) ...
There are 6 blue pens, 5 black pens and 4 green pens in a bag. Three pens are chosen randomly.
Quantity I – The probability of their bein...
If -5 ≤ x ≤ 3 and -1 ≤ y ≤ 0, then the minimum value of 2y – 3x is:
If a + b + c = 0 then the value of (1/(a+b)(b+c)) + (1/(b+c)(c+a)) + (1/(c+a)(a+b)) is
If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?
If 3x + 5y + 7z = 49 and 9x + 8y + 21z = 126, then what is the value of y?
