Q11 of 805 Page 427

If 2 sin 2θ = √3 find the value of θ.

Given 2 sin 2θ = √3

⇒ sin 2θ = sin 60⁰

⇒ 2θ = 60⁰

⇒ θ = 30⁰

Check whether 6" can end with the digit 0? Justify your answer.

Find the zeros of the polynomial 9x² - 5 and verify the relation between zeros and coefficients.

In ΔABC, D and E are points on AB and AC respectively such that AD = 5 cm, DB = 8 cm and DE || BC. If AC = 6.5 cm, then find AE.