For the following questions answer them individually
If $$\tan\theta=\frac{\sin\alpha-\cos\alpha}{\sin\alpha+\cos\alpha}$$ then $$\sin\alpha+\alpha$$ is
If $$7 sin^{2} θ + 3 cos^{2} θ = 4$$, (0° < θ < 90°), then the value of tanθ 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 :
The percentage of students passed with Second class in the year 2000 is
The percentage of students passed with First class in the year 2001 is
The number of students passed with Third class in the year 2002 is
The number of students passed with Second class in the year 2002 is
Pie-charts show the expenses on various heads in construction of a house. Study the pie-chart.
What percentage of the total amount is being spent on cement in 1991 ?
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 ?