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Grade 9Trigonometry

Cot(theta)+cosec(theta)=2 , find the value of 1+cos(theta)/(1-cos(theta)). 2) cos(theta)-sin(theta)/(cos(theta)+sin(theta)=1-3^1/2/(1+3^1/2) find the value of (theta).

Yash tripathi

10 Years agoGrade 9

3 Answers

Arif Hossain

10 Years ago

Arif Hossain

10 Years ago

Kushagra Madhukar

5 Years ago

Dear student,

Please find the answer to your question.

CotQ+cosecQ=2

Solving this we get, cosQ = 3/5 or – 1

Hence, 1 + cosQ/1 – cosQ = 4 or 0

(cosQ-sinQ)/(cosQ+sinQ)=1-3^1/2/(1+3^1/2)

On, simplifying, tanQ = 3^½

or, Q = 60^o

Thanks and regards,

Kushagra

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