Coefficient of $x^2$ in (x + 3)(2 - 4x)(5x - 6) is1). 262). -743). 744). -26
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1. The length of the three sides of a right angled triangle are (x-2) cm.x cm and (x + 2) cm respectively. Then the value of x is
2. If x+$\frac{1}{x}$ =5, then the value of $\frac{5x}{x^{2}+5x+1}$ is
3. If \(a - \frac{1}{a} = 1,\) then the value of \(\frac{{{a^2} - a - 1}}{{{a^2} + a + 1}}\) is (a ≠ 0)
4. In the following question two equations are given. You have to solve these equations and determine relation between x and y. I. 2x2 + 12x + 18 = 0 II. – 7y2 – 42y – 63 = 0
5. In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer. I. a2 + 4a = 0 II. b2 + 9b + 20 = 0
6. In the given figure,$\angle ONY$ = $50^{0}$ and $\angle OMY$ = $15^{0}$ . Then the value of the $\angle MON$ is
7. If √($cosec^{2}A$ - 1) = x, then the value of x is
8. ABCD is a rhombus whose side AB = 4 cm and $\angle ABC$ = $120^{0}$, then the length of diagonal BD is equal to:
9. A number when subtracted from 5 times of 64, the result obtained is 4 less than 8 times the number. Find the number.
10. In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer I. a2 + 36a + 324 = 0 II. b2 - 35b + 96 = 0
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