Introduction to Trigonometry

1 - A, 2 - C, 3 - B ✘ 1 - B, 2 - C, 3 - A ✘ 1 - B, 2 - C, 3 - D ✘ 1 - D, 2 - B, 3 - A ✔

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trigonometric identities ✘ trigonometry ✘ trigonometric ratios of the angles ✘ none of these ✔

2 ✘ 1 ✘ [latex]\frac{3}{4}[/latex] ✘ [latex]\frac{1}{2}[/latex] ✔

2 ✘ [latex]\frac{1}{\sqrt{2}}[/latex] ✘ 1 ✔

1 ✘ [latex]\frac{1}{\sqrt{3}}[/latex] ✘ √3 ✔

1 ✘ [latex]\frac{1}{2}[/latex] ✘ 2 ✔

ab ✘ b² + a² ✘ a²b² ✘ a+b ✔

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