The result of 2 + cos2-sin1 ^ 2 under the root sign is A cos1 B sin1 C √3 *cos1 D -√3*cos1

The result of 2 + cos2-sin1 ^ 2 under the root sign is A cos1 B sin1 C √3 *cos1 D -√3*cos1

2 + cos2-sin1 ^ 2 under root sign
=√(2+2cos²1-1-sin²1)
=√(2cos²1+1-sin²1)
=√3cos²1
=√3 *cos1
Choose C