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If cos X is 0.438 then value of angle X in a right angle triangle is

The angles of a quadrilateral are in the ratio of 2:4:7:5. The smallest angle of the quadrilateral is equal to the smallest angle of a triangle. One of the angles of the triangle is twice the smallest

Four signalsm1 = cos (ω0t), m2(t) = cos (ω0t), m3(t) = 2 cos (ω0t) and m4(t) = cos (4 ω0t) are multiplexed by Time Division Multiplexing system. The commutator speed in rps is

A sequential multiplexer is connected as shown in figure. Each time the multiplexer receives the clock, it switches to the next channel from 6 to 1. If the input signals are :A = 10 cos 2p(4 x 103t)B

Match the following: List I List II A.A1 cos 2pf1t1.B.A1 A2 cos 2pf1t cos 2pf2t2.v1 (t) v2 (t)C.3., f1, - f1D.f1 + f2, f1 - f2, - f1 + f2, - f1 - f24.A1 cos ω1t

What is the area of a right-angled triangle I. The perimeter of the triangle is 30 cm II. The ratio between the base and the height of the triangle is 5 : 12 III. The area of the triangle is e

Consider the amplitude modulated (AM) signal Ac cos ωct + 2 cos ωmt cos ωct For demodulating the signal using envelope detector, the minimum value of Ac should be

Iam facing south. I turn right and walk 20 m. Then I turn right again and walk 10m. Then I turn left and walk 10m and then turning right walk 20m. Then I turn right again and walk 60m. In which direct

An AM wave is given by s(t)AM = 20 (1 + 0.5 cos 103t + 0.3 cos 104 t cos 106 t) the modulation index of the envelope is

An amplitude modulated wave is e = 50 (1 + 0.4 cos 1000 t + 0.3 cos 10000 t) cos 107 t

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