R K Bansal Solutions for Exercise 1: EXERCISE

In the given figure; $BC=15 \mathrm{cm}$ and $\sin B=\frac{4}{5}$.

Calculate the measure of $AB$ and $AC$.

In the given figure; $BC=15 \mathrm{cm}$ and $\sin B=\frac{4}{5}$.

Now, if $\tan \angle \mathrm{ADC}=1$; calculate the value of ${\cos }^{2}D+{\tan }^{2}B-\frac{1}{{\cos }^{2}B}$.

If $\sin A+cosecA=2$, Find the value of ${\sin }^{2}A+{cosec}^{2}A$.

If $\tan A+\cot A=5$, Find the value of ${\tan }^{2}A+{\cot }^{2}A$

Given: $4\sin \theta =3\cos \theta$; Find the value of: $\sin \theta$.

Given: $4\sin \theta =3\cos \theta$; Find the value of: $\cos \theta$.

Given: $4\sin \theta =3\cos \theta$; Find the value of: ${\cot }^2\theta -{cosec}^2\theta$.

Given: $4\sin \theta =3\cos \theta$; Find the value of: $4{\cos }^2\theta -3{\sin }^2\theta +2$.