If 4x² + y² = 40 and x y = 6, then find the value
of 2x + y?
The value of:
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Find ‘x’ if (x³+3x)/(3x²+1) = 189/61
Find the value x2 + y2, if xy = 13 and x + y = 7.
What is the highest common factor of (x³ - x² - x - 15) and (x³ - 3x² - 3x + 9)?
Find the value of 3/4 cot² 30° + cos² 30°-3cosec²60° + tan² 60°.
If x + y + z = 20, x² + Y² + z² = 160 and x z = y², then find the value of x z?
If (a + b + c) = 9, find (a – 4)3 + (b – 2)3 + ( c – 3)3 - 3(a – 4 ) (b – 2 ) (c – 3)?
x = 7 - 4√3 then the value of x³+1/x³ is equal to?