The value of (243)15 is
(a) 3 (b)-3 (c) 5 (d)13
(243)15 →31 =3 ∴ The value is 3. Hence, the correct option is (a).
If cos A - 3 sinA = -1 and A is an acute angle; then the value of sin A is?
If ∣∣z−4z∣∣ =2, then the maximum value of |z| is