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If a and b are order and degree of differential equation y'' + (y')2 + 2y = 0, then value of 2a + 6b, is : |
3 4 6 10 |
10 |
y'' + (y')2 + 2y = 0 highest order derivative ⇒ order = 2 = a max. power of it ⇒ degree = 1 = b so 2a + 6b = 2 × 2 + 6 × 1 = 4 + 6 = 10 |
