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deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) (1 + cosec A)/ cosec A = cos2 A/ (1 – sin A) (ii) root{(1-cosA/(1+cosA)} =sinA/(1+cosA)

This question has been taken from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities Chapter number-18 (i) (1 + cosec A)/ cosec ...Read more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

There are three consecutive positive integers such that the sum of the square of the first and the product of other two is 154. What are the integers?

This question has been taken from Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise ...Read more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

A piece of cloth costs Rs. 300. If the piece was 5 metres longer and each metre of cloth costs Rs. 2 less, the cost of the piece would have remained unchanged. How long is the original piece of cloth and what is the rate per metre?

This question has been taken from Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise ...Read more

deepaksoniGuru

Asked: March 18, 2021In: ICSE

Find the mean proportion of: (i) 5 and 80 (ii) 1/12 and 1/75 (iii) 8.1 and 2.5 (iv) (a – b) and (a3 – a2b), a ˃ b

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

deepaksoniGuru

Asked: March 19, 2021In: ICSE

If x=root(a+x) +root(a−1) /root(a+1) −root(a−1) , using properties of proportion , show that x² – 2ax + 1 = 0

exam oriented an important question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publicatio This question has been ...Read more

deepaksoniGuru

Asked: March 26, 2021In: ICSE

(a) In the figure (i) given below, straight lines AB and CD pass through the centre O of a circle. If ∠OCE = 40° and ∠AOD = 75°, find the number of degrees in : (i) ∠CDE (ii) ∠OBE.

Sorry it's a private question.

deepaksoniGuru

Asked: March 31, 2021In: ICSE

Question 11. (a) In the figure (i) given below, O is the centre of the circle. If ∠COD = 40° and ∠CBE = 100°, then find : (i) ∠ADC (ii) ∠DAC (iii) ∠ODA (iv) ∠OCA. (b) In the figure (ii) given below, O is the centre of the circle. If ∠BAD = 75° and BC = CD, find : (i) ∠BOD (ii) ∠BCD (iii) ∠BOC (iv) ∠OBD

This is an important and exam oriented question from Chapter name- circles Topic – Angle properties of circles Chapter number- ...Read more

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(i) (1 + cosec A)/ cosec A = cos2 A/ (1 – sin A) (ii) root{(1-cosA/(1+cosA)} =sinA/(1+cosA)

There are three consecutive positive integers such that the sum of the square of the first and the product of other two is 154. What are the integers?

A piece of cloth costs Rs. 300. If the piece was 5 metres longer and each metre of cloth costs Rs. 2 less, the cost of the piece would have remained unchanged. How long is the original piece of cloth and what is the rate per metre?

Find the mean proportion of: (i) 5 and 80 (ii) 1/12 and 1/75 (iii) 8.1 and 2.5 (iv) (a – b) and (a3 – a2b), a ˃ b

If x=root(a+x) +root(a−1) /root(a+1) −root(a−1) , using properties of proportion , show that x² – 2ax + 1 = 0

(a) In the figure (i) given below, straight lines AB and CD pass through the centre O of a circle. If ∠OCE = 40° and ∠AOD = 75°, find the number of degrees in : (i) ∠CDE (ii) ∠OBE.