# Category Archives: School Learning

Question 1. Î”ABC and Î”DBC are two isosceles triangles on the same base BC and vertices A and D are on the same side ofâ€¦ Read More
Question 1. Give the geometric representations of y = 3 as an equation (i) in one variable (ii) in two variables Solution: (i) If yâ€¦ Read More
Question 1: Find the equation of a line for which (i) p = 5, Î± = 60Â° (ii) p = 4, Î± = 150Â° (iii)â€¦ Read More
Question 11: Find x, y and z so that A = B, where A= . Solution: As it is given that the matrices are equal, everyâ€¦ Read More
Question 1. The angles of quadrilateral are in the ratio 3:5:9:13. Find all the angles of the quadrilateral. Solution: As we know that, the sumâ€¦ Read More
Question 1: If a matrix has 8 elements, what are the possible orders it can have? What if it has 5 elements? Solution:  Part 1:â€¦ Read More
Question 1. Find the principal value of each of the following :   (i) Sin-1(- âˆš3/2) (ii) Sin-1(cos 2Ï€/3) (iii)Sin-1(-âˆš3 – 1/2âˆš2)  (iv) Sin-1(âˆš3 + 1/2âˆš2)  (v) Sin-1(cosâ€¦ Read More
Mean, Median and Mode are measures of the central tendency. These values are used to define the various parameters of the given data set. Measureâ€¦ Read More
Mensuration is the branch of mathematics that talks about the length, volume, and area of different geometrical objects. The shape may be in 2-D orâ€¦ Read More
Question 1. Four-fifth of a number is more than three-fourth of the number by 4. Find the number. Solution: Let us consider the number asâ€¦ Read More
Probability refers to the extent of the occurrence of events. When an event occurs like throwing a ball, picking a card from the deck, etcâ€¦ Read More
Evaluate the determinants from the following Questions. Question 1.  Solution: The determinant of a 2 x 2 matrix  Hence,  Question 2. (i)  Solution:  from trigonometricâ€¦ Read More
Question 1. In quadrilateral ACBD AC = AD and AB bisects âˆ  A (see Fig. 7.16). Show that âˆ† ABC â‰… âˆ† ABD What canâ€¦ Read More
Question 1: How would you rewrite Euclidâ€™s fifth postulate so that it would be easier to understand? Solution: Euclidâ€™s fifth postulate:  Euclid’s fifth postulate saysâ€¦ Read More
Question 1. Check the validity of the following statements: (i) p: 100 is a multiple of 4 and 5. (ii) q: 125 is a multipleâ€¦ Read More