class10 Archives - Page 2 of 3

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deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) Root{(1+sinA)/(1-sinA)}= tanA+secA (ii) root{(1-cosA)/(1+cosA)}= cosecA-cotA

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This is an important question from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities Chapter number-18 We have ...Read more

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deepaksoniGuru

Asked: March 15, 2021In: ICSE

(i) cosec A/ (cosec A – 1) + cosec A/ (cosec A + 1) = 2 sec2 A (ii) cot A – tan A = (2cos2 A – 1)/ (sin A – cos A) (iii) (cot A – 1)/ (2 – sec2 A) = cot A/ (1 + tan A)

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This ques has been asked in previous year question paper of class 10 and is the very important ques from ...Read more

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deepaksoniGuru

Asked: March 15, 2021In: ICSE

(i) (1 + sin A)/ cos A + cos A/ (1 + sin A) = 2 sec A (ii) tan A/ (sec A – 1) + tan A/ (sec A + 1) = 2cosec A

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This is an important question taken from the Book Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities Chapter ...Read more

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deepaksoniGuru

Asked: March 15, 2021In: ICSE

Prove that following: (i) cos θ sin (90° – θ) + sin θ cos (90° – θ) = 1 (ii) tan θ/ tan (90o – θ) + sin (90o – θ)/ cos θ = sec2 θ (iii) (cos (90o – θ) cos θ)/ tan θ + cos2 (90o – θ) = 1 (iv) sin (90o – θ) cos (90o – θ) = tan θ/ (1 + tan2 θ)

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This ques is very important and has been taken from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric IdentitiesRead more

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deepaksoniGuru

Asked: March 15, 2021In: ICSE

Without using trigonometric tables, evaluate the following (6 to 10): 6. (i) cos2 26o + cos 64o sin 26o + (tan 36o/ cot 54o) (ii) (sec 17o/ cosec 73o) + (tan 68o/ cot 22o) + cos2 44o + cos2 46o

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

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deepaksoniGuru

Asked: March 15, 2021In: ICSE

If 12 cosec θ = 13, find the value of (2 sin θ – 3 cos θ)/ (4 sin θ – 9 cos θ)

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

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deepaksoniGuru

Asked: March 15, 2021In: ICSE

If A is an acute angle and sec A = 17/8, find all other trigonometric ratios of angle A (using trigonometric identities).

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Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities If A is an acute angle and sec A = 17/8, ...Read more

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Rajan@2021Guru

Asked: March 12, 2021In: CBSE

A man starts repaying a loan as first installment of Rs. 500. If he increases the installment by Rs 25 every month, what amount he will pay in the 30th installment?

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An important question from ML Agarwal of Class10 for board examination We have been asked A man starts repaying ...Read more

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Rajan@2021Guru

Asked: March 12, 2021In: CBSE

If the 8th term of an A.P is zero, prove that it’s 38th term is triple of its 18th term.

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One of the important question from ML Agarwal of Class10. If the 8th term of an A.P is zero, prove ...Read more

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Rajan@2021Guru

Asked: March 11, 2021In: CBSE

Determine the AP whose third term is 16 and 7th term exceeds the 5th term by 12.

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One of the most important question of ML Publication of Class10 of Arithmetic Progression Determine the AP whose third ...Read more

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