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The rationalizing factor of \sqrt{23} is $°$ $Options^{°}$ $0$ A 24 23 C \sqrt{23} D None of these

$4.$ find sqrt(3) $\left(3\right)$ is irrational where sqrt is stands for ' square root' $3$ Points) $\right)$

Find the Modulus of $\left(-i-$ $2$ points $9rt\left(3\right)\right)^{x}$ $1+s9r+\left(3\right)$ $○\right)$ $2$ $○$ $3$ $○$ $-2$

Evaluate the following a. $\left(-3\right)x\left(-3\right)x\left(-3\right).$ . $7$ times b. $\left(-1\right)x\left(-1\right)x$ ... . $x\left(-D\right)$ $100$ times c. $-95\times 9+\left(-95\right)$ d. $\left(1\right)x\left(1\right)\times \left(1\right)$ (1)...... $50$ times.

. To increase the frequency from 100HZ the tension in the string has to be changed $by^{°}$ A. 4times $\infty B_{0}$ $16$ times C. $2$ 2 times D. None of these Page $n%0$

Solve. $4p^{2}-4p=1$ $O\left(1+sqr2\right)/2,\left(1.sqrt2\right)/2$ $O$ $\left(4+-sqrt32\right)/8$ $O$ $\left(4+.4sqr2\right)/8$ $0$ Prime