CBSE /Class 10
Maths MCQ Based On Trigonometry trigonometric ratio
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CBSE Class 10 Maths Trigonometry trigonometric ratio
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Recall the trigonometric ratio of sec A
Find out BC by the Pythagoras theorem. \\(cosecA=\\frac{1}{sinA}\\) \\(cotA=\\frac{1}{tanA}\\)
\\(\\sin 30^{\\circ}=1/2, \\cos 60^{\\circ}=1/2, \\tan 45^{\\circ}=1, \\cos 90^{\\circ}=0\\)
Use formulae.
\\(tan C = \\frac{AB}{BC}\\) \\(tan A = \\frac{BC}{AB}\\) \\(cot A = \\frac{1}{tan A}\\) According to Pythagorean theorem,\\(AB^{2}+BC^{2}=AC^{2}\\).
Find the hypotenuse first to find out the value of Sec A.
Use trigonometric identity
Using trigonometric ratios and \\(sin^2\\theta-3sin\\theta+2=0\\), finding theta
triangle XYZ is right angled at Z. The tan ratio of the triangle is found.
Use trigonometric ratios.
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