Q12 of 45 Page 1

Prove that:


OR


Solve for x :

We know,



Taking LHS







Now, let











Therefore, we have





OR


We know,



Given,






⇒ 5x = 1 – 6x2


⇒ 6x2 + 5x – 1 = 0


⇒ 6x2 + 6x – x – 1 = 0


⇒ 6x(x + 1) – 1(x + 1) = 0


⇒ (6x – 1)(x + 1) = 0


⇒ or x = -1


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