20 / 12 / 11 SIMPLIFYING TRIGONOMETRIC EXPRESSIONS

 tg²x + 1 = sec²x     tg²x + 1 = sec²x    tg²x + 1 = sec²x   tg²x + 1 = cosec²x    tg²x + 1 = sec²x    tg²x + 1 = sec²x

TRY TO SIMPLIFY A TRIGONOMETRIC EXPRESSION AND, FIND OUT IF YOU ARE RIGHT!

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 cotg²x + 1 = cosec²x     cotg²x + 1 = cosec²x    cotg²x + 1 = cosec²x   cotg²x + 1 = cosec²x    cotg²x + 1 = cosec²x