Prove that tan^2 x+Cot^2x+2=Sec^2x Cosec^2x.

Dear friends in this video ,we study about trigonometric related questions can asked in 10th exam 2023 CBSE board.
जो यह पढकर नही जाएगा Exam hall मे रोएगा। Vvi objective in math for Class 10th.

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