(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Statement 1: sin²θ + cos²θ = 1

Statement 2: cosec²θ + cot²θ = 1

Which of the following is valid?

The given graph with a histogram represents the number of plants of different heights grown in a school campus. Study the graph carefully and answer the following questions:

1. Make a frequency table with respect to the class boundaries and their corresponding frequencies.
2. State the modal class.
3. Identify and note down the mode of the distribution.
4. Find the number of plants whose height range is between 80 cm to 90 cm.

Factorize: sin³θ + cos³θ

Hence, prove the following identity:

`(sin^3θ + cos^3θ)/(sin θ + cos θ) + sin θ cos θ = 1`

Use ruler and compass to answer this question. Construct ∠ABC = 90°, where AB = 6 cm, BC = 8 cm.

1. Construct the locus of points equidistant from B and C.
2. Construct the locus of points equidistant from A and B.
3. Mark the point which satisfies both the conditions (a) and (b) as 0. Construct the locus of points keeping a fixed distance OA from the fixed point 0.
4. Construct the locus of points which are equidistant from BA and BC.

A polynomial in ‘x’ is divided by (x – a) and for (x – a) to be a factor of this polynomial, the remainder should be ______.

Prove the following trigonometry identity:

(sin θ + cos θ)(cosec θ – sec θ) = cosec θ ⋅ sec θ – 2 tan θ

The table given below shows the runs scored by a cricket team during the overs of a match.

Use graph sheet for this question.

Take 2 cm = 10 overs along one axis and 2 cm = 10 runs along the other axis.

1. Draw a histogram representing the above distribution.
2. Estimate the modal runs scored.

If x²⁵ + x²⁴ is divided by (x + 1), the result is ______.

The remainder, when x³ – x² + x – 1 is divided by x + 1, is ______.

4x² – kx + 5 leaves a remainder 2 when divided by x – 1. The value of k is ______.

If the sum of first 7 terms of an A.P. is 49 and that of its first 17 terms is 289, find the sum of first n terms of the A.P.

Check whether -150 is a term of the A.P. 11, 8, 5, 2, ....

An A.P. consists of 50 terms of which 3^rd term is 12 and the last term is 106. Find the 29^th term of the A.P.

If the 3rd and the 9th terms of an AP are 4 and –8 respectively, which term of this AP is zero?

How many multiples of 4 lie between 10 and 250?

Determine the A.P. whose 3^rd term is 16 and the 7^th term exceeds the 5^th term by 12.

Find the 20^th term from the last term of the A.P. 3, 8, 13, …, 253.

Ramkali saved Rs 5 in the first week of a year and then increased her weekly saving by Rs 1.75. If in the n^th week, her week, her weekly savings become Rs 20.75, find n.

Find the sum of the following APs:

2, 7, 12, ..., to 10 terms.

Find the sum of the following APs:

–37, –33, –29, ... to 12 terms.