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1)integrate the following : ∫4 x 3 x dx 2)a number is chosen randomly from numbers 1 to 60.the probability that the chosen number is a multiple of 2 or 5 is
1. Note that 4^x.3^x= 12^xSo the integral is M= ∫12^xdxSubstitute y=12^x so that dy=12^x.ln12 dxSo M= ∫dy/ln12= y/ln12= 12^x/ln122. Number of numbers that are multiples of 2 or 5=Number of multiples of 2 + number of multiples of 5 - number of multiples of 10 = 30 + 12 - 6= 36Hence probability= 36/60= 3/5KINDLY APPROVE :))
Dear student 1. integration of 12^x dx = 12^x / (ln12) + const Hope it helps PS-please ask only one question in one thread.
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