ComedkTrigonometric Ratios And IdentitiesCOMEDK 2020MCQ+1 / -02020\({\sin ^2}17.5^\circ + \sin 72.5^\circ\) is equal toA\({\tan ^2}45^\circ\)B\({\cos ^2}90^\circ\)C\({\sin ^2}45^\circ\)D\({\cos ^2}30^\circ\)Check AnswerClear SelectionReveal AnswerShow Explanation