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deepaksoniGuru

Asked: March 19, 2021In: ICSE

Given x=root(a2+b2) +root(a2−b2) /(root (a2+b2) −root(a2−b2) Use componendo and dividendo to prove that b²=2a²x/x²+1

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This is a basic question from ML aggarwal book of class 10th, chapter 7, ratio and proportion., ICSE board We have ...Read more

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deepaksoniGuru

Asked: April 1, 2021In: ICSE

Question 3. The tangent to a circle of radius 6 cm from an external point P, is of length 8 cm. Calculate the distance of P from the nearest point of the circle.

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This is circle based question from Chapter name- circles Topic – Angle properties of circles Chapter number- 15 Tangent from a ...Read more

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deepaksoniGuru

Asked: April 17, 2021In: ICSE

Question 31. PAB is secant and PT is tangent to a circle (i) PT = 8 cm and PA = 5 cm, find the length of AB. (ii) PA = 4.5 cm and AB = 13.5 cm, find the length of PT.

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One of the most important and exam oriented question from Chapter name- circles Topic – Angle properties of circles Chapter ...Read more

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deepaksoniGuru

Asked: May 1, 2021In: CBSE

Question 1: For the following arithmetic progressions write the first term a and the common difference d: (iii)0.3, 0.55, 0.80, 1.05, …

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This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.2 We have been ...Read more

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deepaksoniGuru

Asked: May 27, 2021In: CBSE

Problem 6: Find out which of the following sequences are arithmetic progressions. For those which are arithmetic progressions, find out the common difference. (v) 3, 3, 3, 3, ……

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One of the most important and exam oriented question from Chapter name- Arithmetic Progression Class 10th Chapter number- 9 Exercise ...Read more

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deepaksoniGuru

Asked: June 14, 2021In: CBSE

Question 8. If 10 times the 10th term of an A.P. is equal to 15 times the 15th term, show that 25th term of the A.P. is zero.

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This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.4 In this question we ...Read more

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deepaksoniGuru

Asked: June 29, 2021In: CBSE

Question 5. Find the sum of first 15 terms of each of the following sequences having nth term as(iii) xn = 6 – n

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This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.6 In this question we ...Read more

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Given x=root(a2+b2) +root(a2−b2) /(root (a2+b2) −root(a2−b2) Use componendo and dividendo to prove that b²=2a²x/x²+1

Question 3. The tangent to a circle of radius 6 cm from an external point P, is of length 8 cm. Calculate the distance of P from the nearest point of the circle.

Question 31. PAB is secant and PT is tangent to a circle (i) PT = 8 cm and PA = 5 cm, find the length of AB. (ii) PA = 4.5 cm and AB = 13.5 cm, find the length of PT.

Question 1: For the following arithmetic progressions write the first term a and the common difference d: (iii)0.3, 0.55, 0.80, 1.05, …

Problem 6: Find out which of the following sequences are arithmetic progressions. For those which are arithmetic progressions, find out the common difference. (v) 3, 3, 3, 3, ……

Question 8. If 10 times the 10th term of an A.P. is equal to 15 times the 15th term, show that 25th term of the A.P. is zero.

Question 5. Find the sum of first 15 terms of each of the following sequences having nth term as(iii) xn = 6 – n