Question
Which of the following group of soil is the largest and
most important group of India?Solution
· Alluvial soils are by far the largest and the most important soil group of India. · Covering about 15 lakh sq km or about 45.6 per cent of the total land area of the country, these soils contribute the largest share of our agricultural wealth and support the bulk of India’s population.
If, ( a + b = 12 ) and ( a² + b² = 80 ), then find the value of (a³ + b³).
- If (x + y + z) = 14 and (xy + yz + zx) = 50, then find the value of (x² + y² + z²).
- If x 4 – 83x 2 + 1 = 0, then the value of x 3 - x -3 can be:
If a + (1/a) = 2, then find the value of (a5 + a3 + 6)/(7a – 5).
If x + y = 4 and (1/x) + (1/y) = 24/7, then the value of (x3 + y3).

Three mixtures: A, B, and C containing 25%, 35%, and X% of water, respectively. If all these mixtures are mixed in the ratio of 1:3:2 to form a resultan...


- If x² - 2x + 1 = 0, then find the value of (x² + x⁻²)(x³ + x⁻³).