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deepaksoniGuru

Asked: March 17, 2021In: ICSE

Three numbers are in the ratio 1/2: 1/3: ¼. If the sum of their squares is 244, find the numbers

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It is a question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publication In this question we have ...Read more

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deepaksoniGuru

Asked: March 19, 2021In: ICSE

If (11a2 + 13b2) (11c2 – 13d2) = (11a2 – 13b2) (11c2 + 13d2), prove that a: b :: c: d.

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

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deepaksoniGuru

Asked: March 26, 2021In: ICSE

(b) In the figrue (ii) given below, O is the centre of the circle. If ∠AOB = 140° and ∠OAC = 50°, find (i) ∠ACB (ii) ∠OBC (iii) ∠OAB (iv) ∠CBA

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This is the basic and conceptual question from Chapter name- circles Topic – Angle properties of circles Chapter number- 15 In ...Read more

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deepaksoniGuru

Asked: March 31, 2021In: ICSE

Question 6. (a) In the figure given below, O is the centre of the circle. If ∠BAD = 30°, find the values of p, q and r.

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

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deepaksoniGuru

Asked: April 15, 2021In: ICSE

Question 15. Calculate the length of a direct common tangent to two circles of radii 3 cm and 8 cm with their centres 13 cm apart.

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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: April 29, 2021In: CBSE

Problem 1: Write the first terms of each of the following sequences whose nth term is: (i) an = 3n + 2

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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: May 9, 2021In: CBSE

Problem 6: Justify whether it is true to say that the sequence, having following nth term is an A.P. (iii) an = 1 + n + n² .

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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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Three numbers are in the ratio 1/2: 1/3: ¼. If the sum of their squares is 244, find the numbers

If (11a2 + 13b2) (11c2 – 13d2) = (11a2 – 13b2) (11c2 + 13d2), prove that a: b :: c: d.

(b) In the figrue (ii) given below, O is the centre of the circle. If ∠AOB = 140° and ∠OAC = 50°, find (i) ∠ACB (ii) ∠OBC (iii) ∠OAB (iv) ∠CBA

Question 6. (a) In the figure given below, O is the centre of the circle. If ∠BAD = 30°, find the values of p, q and r.

Question 15. Calculate the length of a direct common tangent to two circles of radii 3 cm and 8 cm with their centres 13 cm apart.

Problem 1: Write the first terms of each of the following sequences whose nth term is: (i) an = 3n + 2

Problem 6: Justify whether it is true to say that the sequence, having following nth term is an A.P. (iii) an = 1 + n + n² .