If  $\mathrm{sec\theta }=\frac{5}{3}$, find the value of $\frac{\mathrm{tan\theta }-\mathrm{sin\theta }}{1+\mathrm{tan\theta sin\theta }}$.

Important Questions on Trigonometrical Ratio & Identities

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 5

If $\sin \theta =\frac{1}{3}$ then find the value of $k$ in $\cos \theta .\mathrm{cosec}\theta +\tan \theta .\sec \theta =\frac{1}{8}$$\left(k\sqrt{2}+3\right)$.

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 6

In a right angled triangle,$△\mathrm{ABC}$,right angled at $\angle \mathrm{C}$,and $\mathrm{tanA}=\frac{1}{\sqrt{3}}$,then find the value of $\mathrm{sinA}.\mathrm{cosB}+\mathrm{cosA}.\mathrm{sinB}$

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 7

If  $\mathrm{cotA}=\frac{3}{4}$,find the value of $\frac{\mathrm{sinA}+\mathrm{cosA}}{\mathrm{sinA}-\mathrm{cosA}}$.

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 8

If  $\mathrm{sin\theta }=\frac{4}{5}$,find the value of $\frac{4\mathrm{tan\theta }-5\mathrm{cos\theta }}{\mathrm{sec\theta }+4\mathrm{cot\theta }}$.

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 1

Write the value of $\frac{1-{\tan }^{2}45°}{1+{\tan }^{2}45°}$

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 1

The value of $\frac{2 \tan 30°}{1-{\tan }^{2}30°}$ is $\sqrt{a}$, find the value of $a$.

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 2

Find the value of $k$ when $\cos 30°\cos 45°-\sin 30°\sin 45°=\frac{\left(\sqrt{3}-1\right)}{k\sqrt{k}}$

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IMPORTANT

Mathematics Class - 9>Chapter 8 - Trigonometrical Ratio & Identities>Exercise>Q 2

Write the value of $\mathrm{cosec}30°+\cot 45°$