Tamil Nadu Board Solutions for Chapter: Trigonometry, Exercise 2: Exercise

From the given figure, find the value of $\mathrm{cosecC}$.

If $\cos A=\frac{3}{5}$ then find the value of $\frac{\mathrm{sinA}-\mathrm{cosA}}{2\mathrm{tanA}}$

If $3\mathrm{cotA}=2$, then find the value of $\frac{4\mathrm{sinA}-3\mathrm{cosA}}{2\mathrm{sinA}+3\mathrm{cosA}}$.

If $\cos \theta :\sin \theta =1:2$, then find the value of $\frac{8\cos \theta -2\sin \theta }{4\cos \theta +2\sin \theta }$.

A boy standing at a point $O$ finds his kite flying at a point $P$ with distance $OP=25 \mathrm{m}$. It is at a height of $5 \mathrm{m}$ from the ground. When the thread is extended by $10 \mathrm{m}$ from $P$, it reaches a point $Q$. If the height $QN$ is $\mathrm{K} \mathrm{m}$, then what will be the height $QN$ of the kite from the ground? (use trigonometric ratios)

For the measures in the figure, compute sine, cosine and tangent ratios of the angle $\theta$.

If $cosecA=\sec {34}^{\circ }$, then find $A$

If $\tan B=\cot {47}^{\circ }$, then find $B$.