TS ICET 2015 Question Paper

Instructions

For the following questions answer them individually

Question 121

$$\sum_{k=0}^{\infty}\frac{2^k}{3^{k+1}} =$$

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Question 122

If the fourth term in the binomial expansion of $$\left(2^x. x^2 + \frac{1}{x^2}\right)^6$$ is 160, then x =

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Question 123

The middle term in the expansion of $$\left(x^2 - \frac{1}{x}\right)^8$$ is

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Question 124

$$A = \begin{bmatrix}1 & 2 & 2 \\2 & 1 & 2 \\2 & 2 & 1 \end{bmatrix} \Rightarrow A^2 - 4A =$$

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Question 125

If det A = 5 for a $$3 \times 3$$ matrix A, then det(5A) =

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Question 126

$$\lim_{x \rightarrow 3}\frac{x - 3}{\sqrt{x - 2} - \sqrt{4 - x}} =$$

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Question 127

$$\lim_{x \rightarrow \frac{\pi}{2}}\frac{1 - \sin^3 x}{\cos^2 x} =$$

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Question 128

In $$\triangle ABC, \angle BAC = 90^\circ, AD \perp BC, AD = 6$$ cm and BD = 4 cm. Then DC =

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Question 129

The vertices A, B, C, D in that order of a quadrilateral lie on a circle. Then $$\angle ABC + \angle ADC =$$

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Question 130

If a square is inscribed in a circle of radius $$\sqrt{\frac{2015}{2}}$$ then area of the square is

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