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What is the equation of a curve passing through (0, 1) and whose differential equation is given by `dy = y tan x dx`?A. `y = cos x`B. `y = sin x`C. `y = sec x`D. `y = "cosec" x` |
Answer» Correct Answer - C `dy = y tan x dx` `int (dy)/(y) = int tan x dx` `log |y| = log |sec x| + log |c|` `log |y| = log |c sec x|` `y = c sec x` at `x = 0, y = 1` `y = c` Soluttion is given by `y = sec x` |
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