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deepaksoniGuru

Asked: March 15, 2021In: ICSE

(i) (sec A – 1)/(sec A + 1) = (1 – cos A)/(1 + cos A) (ii) tan2 θ/ (sec θ – 1)2 = (1 + cos θ)/ (1 – cos θ) (iii) (1 + tan A)2 + (1 – tan A)2 = 2 sec2 A (iv) sec2 A + cosec2 A = sec2 A. cosec2 A

This question has been taken from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities Chapter number-18 We ...Read more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) Find two consecutive natural numbers such that the sum of their squares is 61. (ii) Find two consecutive integers such that the sum of their squares is 61.

Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise 5.5 This is an important ques ...Read more

deepaksoniGuru

Asked: March 16, 2021In: ICSE

A boat can cover 10 km up the stream and 5 km down the stream in 6 hours. If the speed of the stream is 1.5 km/hr. find the speed of the boat in still water.

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

(i) In a mixture of 45 litres, the ratio of milk to water is 13: 2. How much water must be added to this mixture to make the ratio of milk to water as 3: 1? (ii) The ratio of the number of boys to the numbers of girls in a school of 560 pupils is 5: 3. If 10 new boys are admitted, find how many new girls may be admitted so that the ratio of the number of boys to the number of girls may change to 3: 2.

Question no.19 From ML aggarwal book, class10, chapter 7, ratio and proportion In first question we have been given the ratio ...Read more

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deepaksoniGuru

Asked: March 19, 2021In: ICSE

If x=8ab/(a+b) find the value of x+4a/x−4a+x+4b/x−4b

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exam oriented an important question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publication In this question we ...Read more

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deepaksoniGuru

Asked: March 26, 2021In: ICSE

Question 7. (a) In the figure (i) given below, AB is a diameter of the circle APBR. APQ and RBQ are straight lines, ∠A = 35°, ∠Q = 25°. Find (i) ∠PRB (ii) ∠PBR (iii) ∠BPR.

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

deepaksoniGuru

Asked: March 31, 2021In: ICSE

Question 7. (a) In the figure given below, PQ is a diameter. Chord SR is parallel to PQ.Given ∠PQR = 58°, calculate (i) ∠RPQ (ii) ∠STP (T is a point on the minor arc SP)

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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(i) (sec A – 1)/(sec A + 1) = (1 – cos A)/(1 + cos A) (ii) tan2 θ/ (sec θ – 1)2 = (1 + cos θ)/ (1 – cos θ) (iii) (1 + tan A)2 + (1 – tan A)2 = 2 sec2 A (iv) sec2 A + cosec2 A = sec2 A. cosec2 A

(i) Find two consecutive natural numbers such that the sum of their squares is 61. (ii) Find two consecutive integers such that the sum of their squares is 61.

A boat can cover 10 km up the stream and 5 km down the stream in 6 hours. If the speed of the stream is 1.5 km/hr. find the speed of the boat in still water.

If x=8ab/(a+b) find the value of x+4a/x−4a+x+4b/x−4b

Question 7. (a) In the figure (i) given below, AB is a diameter of the circle APBR. APQ and RBQ are straight lines, ∠A = 35°, ∠Q = 25°. Find (i) ∠PRB (ii) ∠PBR (iii) ∠BPR.

Question 7. (a) In the figure given below, PQ is a diameter. Chord SR is parallel to PQ.Given ∠PQR = 58°, calculate (i) ∠RPQ (ii) ∠STP (T is a point on the minor arc SP)