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(!) A locomotive engine approaches a railway station and whistles at a frequency of 400Hz . A stationary observer on the platform observes a change of 40 Hz as the engine passes across him . If the velocity of sound is 330m/s ...
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(!) f(x) = Lt n-->∞ [ x/(1+(2sinx)2n) ] then f is discontinuous at (A) pi (B) pi/3 (C) pi/4 (D) pi/6 ...
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(!) A locomotive engine approaches a railway station and whistles at a frequency of 400Hz . A stationary observer on the platform observes a change of 40 Hz as the engine passes across him . If the velocity of sound is 330m/s ...
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(!) f(x) = Lt n-->∞ [ x/(1+(2sinx)2n) ] then f is discontinuous at (A) pi (B) pi/3 (C) pi/4 (D) pi/6 ...
