trigonometric identities Archives - Page 2 of 4

1

deepaksoniGuru

Asked: March 16, 2021In: ICSE

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

1

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

0

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) Prove that (Sin^3A+cos^3A/sinA+cosA) + (sin^3A-cos^3A/sinA-cosA)=2 (ii)Prove that tan2A/(1+tan2A)+cot2A/(1+cot2A)=1

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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

0

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) (sin θ + cos θ) (sec θ + cosec θ) = 2 + sec θ cosec θ (ii) (cosec A – sin A) (sec A – cos A) sec2A = tan A

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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

1

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) (Cot theta +cosec theta-1) /(cot theta – cosec theta+1) =(1+cos theta) /sin theta (ii) Sin theta/cot theta+cosec theta = 2+ sin theta/cot theta-cosec theta

1

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

-11

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) cosec6 A – cot6 A = 3 cot2 A cosec2 A + 1 (ii) sec6 A – tan6 A = 1 + 3 tan2 A + 3 tan4 A

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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

0

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) (1 + tan A)/ sin A + (1 + cot A)/ cos A = 2 (sec A + cosec A) (ii) sec4 A – tan4 A = 1 + 2 tan2 A

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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

-1

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) Root{(secA-1) /(secA+1)} + Root{(secA+1) /(secA-1) = 2cosecA (ii) cos A cot A/ (1 – sin A) = 1 + cosec A

-1

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

0

deepaksoniGuru

Asked: March 16, 2021In: ICSE

(i) Root{(secA-1) /(secA+1)} + Root{(secA+1) /(secA-1) = 2cosecA (ii) cos A cot A/ (1 – sin A) = 1 + cosec A

0

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

0

deepaksoniGuru

Asked: March 16, 2021In: ICSE

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

0

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

0

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)

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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

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