What value should come in place of the question mark (?) in the following question?
52x14+145018=1998÷?
If x = 2+3, then what is the value of 2x + 12x ?
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If x+1x = 4, then what is the value of x6+1x6 ?
If y=2-x1+x, then what is the value of 1y+1 + 2y+1y2-1 ?
Two circles of same radius intersect each other at P and Q. If the length of the common chord is 30 cm and distance between the centres of the two circlesis 40 cm, then what is the radius (in cm) of the circles?
In the given figure, ∠QRN = 40°, ∠PQR = 46° and MN is a tangent at R. What is the value (in deg) of x, y and z respectively?
What is the simplified value of (cotA + tan B)/(cot B + tan A)?