  # ISRO Scientist or Engineer Electronics 2012

Instructions

For the following questions answer them individually

Question 71

# “Cycle Stealing” in microprocessor parlance refers to Question 72

# Principle of “locality” is used in context of Question 73

# If $$A, B \& C$$ are vectors and $$A = 1.u_{x} + 2.u_{y} + 3.u_{z}, B = 1.u_{x} + 1.u_{y} + 1.u_{z}$$ and $$C = 3.u_{x} + 2.u_{y} + 1.u_{z}$$, then $$(A \times B).C$$ Question 74

# The system of equations $$x + y + z = 6, 2x + y + z = 7, x + 2y + z = 8$$ has Question 75

# $$x = e^{y + e^{y + e^{y + ......}}}$$ then $$\frac{dy}{dx}$$ is Question 76

# The area bounded by the curve $$Y^{2} = X, Y = X$$ is given by Question 77

# The eigen values of the matrix are $$\begin{bmatrix}\cos \alpha & \sin \alpha \\ \sin \alpha & \cos \alpha \end{bmatrix}$$ Question 78

# The Laplace Transform of x(t) formed by convolution operator is:$$x(t) = \left\{t.u(t)\right\}\otimes \left\{\cos 2 \pi t.u(t)\right\}$$ Question 79

# A random variable X has $$\overline{X} = 0 \& \sigma_{x}^{2} = 1$$. Form a new random variable $$Y = 2X + 1$$. The values of $$\overline{Y} \& \sigma_{y}^{2}$$ are: Question 80

# Person X can solve 80% of the ISRO question paper and Person Y can solve 60%. The probability that at least one of them will solve a problem from the question paper, selectedat random is : OR