The modulus of the complex number 10 10 2 +iv5 2-iy5 2-iv5 2+iv5 is (a) 2 cos(20 cos ) (c) 2 cos(10 cos (b) 2 sin(10 cos ): (d) 2 sin (20 cos

The modulus of the complex number 10 10 2 +iv5 2-iy5 2-iv5 2+iv5 is (A) 2 cos(20 cos ) (C) 2 cos(10 cos (B) 2 sin(10 cos ): (D) 2 sin (20 cos