Question

tan 45-sec 60-----------plsss answer it fast

Answer 1

Question :-

→ Find value of tan 45° - sec 60°

Answer :-

→ - 1

Solution :-

We have

$\implies \: \tan \: 45 \degree \: - \sec \: 60 \degree \: \\ \\ \because \: \tan \: 45 \degree \: = 1 \: \: \: \sec \: 60 \degree \: = 2 \\ \\ \implies \: 1 - 2 = - 1$

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Some important formulas.

→ sin ² @ + cos ² @ = 1

→ sec ²@ - tan ²@ = 1

→ cosec ²@ - cot ² @ = 1

→ Cosec @ = 1/ sin @

→ sec @ = 1/ cos @

→ tan @ = sin @/ cos @

→ cot @ = 1/ tan @ = cos @ / sin @

→ sin 2@ = 2 sin @ • cos @

→ cos 2@ = 1 + 2 cos ² @ = 1 - 2 sin ² @

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