Question

If P = 2-a, prove that a' + 6ap + p - 8 = 0​

Answer 1

Answer:

Hello here is your answer

Question = If P = 2-a, prove that a' + 6ap + p - 8=0

Method : p =2-a ------- (1)

L.H.S : a³ + 6ap + p³ - 8

= a³ + 6a (2 - a) + (2 - a)³ - 8 [from (1)]

= a³ + 12a - 6a² + 2³ - 3*2³a + 3*2 a² - 8

= a³ + 12a - 6a² + 8 - 12 a + 6 a² - a³ - 8

= 0