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deepaksoniGuru

Asked: March 15, 2021In: ICSE

Without using trigonometric tables, evaluate the following (i) (sin 65o/ cos 25o) + (cos 32o/sin 58o) – sin 28o sec 62o + cosec2 30o (ii) (sin 29o/ cosec 61o) + 2 cot 8° cot 17° cot 45° cot 73° cot 82° – 3(sin² 38° + sin² 52°).

This ques has been asked in 2015 so it is very important question This question is from the Book- ML AggarwalRead more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

David opened a Recurring Deposit Account in a bank and deposited Rs. 300 per month for two years. If he received Rs. 7725 at the time of maturity, find the rate of interest per annum

This is an important question from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Bankin8 Chapter number-2 This question ...Read more

deepaksoniGuru

Asked: March 17, 2021In: ICSE

(i) A woman reduces her weight in the ratio 7: 5. What does her weight become if originally it was 91 kg. (ii) A school collected Rs 2100 for charity. It was decided to divide the money between an orphanage and a blind school in the ratio of 3: 4. How much money did each receive?

Question no.15, From ML aggarwal book, class10, chapter 7, ratio and proportion In these questions we have been given a total ...Read more

deepaksoniGuru

Asked: March 19, 2021In: ICSE

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

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

deepaksoniGuru

Asked: March 26, 2021In: ICSE

Question 9. (a) In the figure (i) given below, chord ED is parallel to the diameter AC of the circle. Given ∠CBE = 65°, calculate ∠DEC.

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

deepaksoniGuru

Asked: March 31, 2021In: ICSE

Question 12. In the given figure, O is the centre and AOE is the diameter of the semicircle ABCDE. If AB = BC and ∠AEC = 50°, find : (i) ∠CBE (ii) ∠CDE (iii) ∠AOB. Prove that OB is parallel to EC.

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

deepaksoniGuru

Asked: April 30, 2021In: CBSE

Problem 2: Find the indicated terms in each of the following sequences whose nth terms are:(v) an = (-1)n.n; a3, a5, a8

This is the basic and conceptual question from Chapter name- Arithmetic Progression Chapter number- 9 Exercise 9.1 We have to ...Read more

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Without using trigonometric tables, evaluate the following (i) (sin 65o/ cos 25o) + (cos 32o/sin 58o) – sin 28o sec 62o + cosec2 30o (ii) (sin 29o/ cosec 61o) + 2 cot 8° cot 17° cot 45° cot 73° cot 82° – 3(sin² 38° + sin² 52°).

David opened a Recurring Deposit Account in a bank and deposited Rs. 300 per month for two years. If he received Rs. 7725 at the time of maturity, find the rate of interest per annum

(i) A woman reduces her weight in the ratio 7: 5. What does her weight become if originally it was 91 kg. (ii) A school collected Rs 2100 for charity. It was decided to divide the money between an orphanage and a blind school in the ratio of 3: 4. How much money did each receive?

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

Question 9. (a) In the figure (i) given below, chord ED is parallel to the diameter AC of the circle. Given ∠CBE = 65°, calculate ∠DEC.

Question 12. In the given figure, O is the centre and AOE is the diameter of the semicircle ABCDE. If AB = BC and ∠AEC = 50°, find : (i) ∠CBE (ii) ∠CDE (iii) ∠AOB. Prove that OB is parallel to EC.

Problem 2: Find the indicated terms in each of the following sequences whose nth terms are:(v) an = (-1)n.n; a3, a5, a8