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- If x2a = y2b =z2c ≠ 0 and x2 = yz, then the value of (ab + bc + ca) /bc is :
- = ?
- If (3x - y) = 3, xy = (2/3), then find the value of {x3 - (y3/27)}
- If √d + (1/√d) = 6, then find the value of d + (1/d).
- If a = 56, b = c = 55, then find the value of a³ + b³ + c³ – 3abc.
- If sin 28° = 15/17 , then tan 62° = ?
- (m + 2) 2 + (n - 1) 2 + (p + 6) 2 = 0, then find the value of 2m - 3n + p.
- If (x - y) = 3, then find the value of (x³ - y³ - 9xy).
- If ( p = 40 - q - r ) and ( pq + r(q + p) = 720 ), then find the value of ( p2 + q2 + r2).
- If p = 30 - q - r and pq + r(q + p) = 296 then find the value of (p 2 + q 2 + r 2 ) .
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