For the following questions answer them individually
If $$\tan\theta=\frac{\sin\alpha-\cos\alpha}{\sin\alpha+\cos\alpha}$$ then $$\sin\alpha+\alpha$$ is
$$tan 9^{\circ}=\frac{p}{q}$$ then the value of $$\frac{\sec^281^{\circ}}{1+\cot^281^{\circ}}$$ is
The sub divided bar diagram given below depicts the result of Class XII students of a school for three years. Study the diagram and answer the questions given below :
Pie-charts show the expenses on various heads in construction of a house. Study the pie-chart.
The percentage increase in the amount spent on labour from 1991 to 2001, given that the total amount spent on the construction of the house is 3,60, 000 in 1991 and ‘8,64,000, in 2001 is
If the total cost of constructing the house is 3,60,000 in 1991 and 8,64,000, in 2001, what is the amount spent on Steel in 1991 and 2001 ?