If A = x²(1 – 3y²), B = x(xy² – 2x) and C = 3y(y – 4x²y), then A + B – C = px² + qx²y² + ry².यदि A = x²(1 – 3y²), B = x(xy² – 2x) और C = 3y(y – 4x²y) है, तो A + B – C = px² + qx²y² + ry² है ।
If A = x²(1 – 3y²), B = x(xy² – 2x) and C = 3y(y – 4x²y), then A + B – C = px² + qx²y² + ry².
What is the value of (5p + q – r)?
यदि A = x²(1 – 3y²), B = x(xy² – 2x) और C = 3y(y – 4x²y) है, तो A + B – C = px² + qx²y² + ry² है ।
(5p + q – r) का मान क्या है ?
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Correct answer: (D) 88
Explanation
A = x² – 3x²y², B = x²y² – 2x², C = 3y² – 12x²y². A + B – C = –x² + 10x²y² – 3y², so p = –1, q = 10, r = –3 and 5p + q – r = –5 + 10 + 3 = 8.A = x² – 3x²y², B = x²y² – 2x², C = 3y² – 12x²y²। A + B – C = –x² + 10x²y² – 3y², इसलिए p = –1, q = 10, r = –3 और 5p + q – r = –5 + 10 + 3 = 8।