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If `(5sqrt(2) + 3sqrt(3)) - (6sqrt(2) - 7sqrt(3)) = asqrt(2) + bsqrt(3)`, then find a and b.
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Find the sum of all odd numbers between 351 and 373.
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Solve: 7x2 – 30x – 25 = 0
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Solve the quadratic equation: 16x2 + 24x + 9 = 0.
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A wholeseller buys pens having taxable value ₹ 12,000 and sold it to the retailer for the taxable value ₹ 14,000. Rate of GST is 20%. Find the CGST and SGST payable by wholeseller.
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Calculate the sum of 35 terms in an AP, whose fourth term is 16 and ninth term is 31.
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Solve the quadratic equation 7x2 + 9x + 2 = 0 by the quadratic formula.
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Find the middle term of the AP. 95, 86, 77, ........, – 247.
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Find the sum of all even numbers from 1 to 250.
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Sum of 1 to n natural number is 45, then find the value of n.
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Solve the following quadratic equation by the formula method:
x2 + 10x + 2 = 0
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If the first term of an A.P. is p, second term is q and last term is r, then show that sum of all terms is `(q + r - 2p) xx ((p + r))/(2(q - p))`.
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In a ‘Mahila Bachat Gat’, Kavita invested from the first day of month ₹ 20 on first day, ₹ 40 on second day and ₹ 60 on third day. If she saves like this, then what would be her total savings in the month of February 2020?
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Solve the following quadratic equation by formula method:
3m2 − m − 10 = 0
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Solve the following quadratic equation by using formula method: 5m2 + 5m – 1 = 0
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Solve the equation by using the formula method. 3y2 +7y + 4 = 0
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If the quadratic equation px2 − 2√5px + 15 = 0 has two equal roots then find the value of p.
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Find the values of k for which the quadratic equation 9x2 - 3kx + k = 0 has equal roots.
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If -5 is a root of the quadratic equation 2x2 + px – 15 = 0 and the quadratic equation p(x2 + x)k = 0 has equal roots, find the value of k.
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If one root of the quadratic equation is `3 – 2sqrt5` , then write another root of the equation.
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