If cosec theta-cot theta =k then find value of cosec theta + cot theta
Answers
cosec²∅ - cot²∅ = 1
=> (cosec∅ - cot∅)(cosec∅ + cot∅) = 1
=> k(cosec∅ + cot∅) = 1
=> cosec∅ + cot∅ = 1/k
Answer:
1/k
Step-by-step explanation:
Concept= Trigonometry
Given= The value of a equation.
To find= The value of another equation.
Explanation=
We have been given the question as if cosec theta-cot theta =k then find value of cosec theta + cot theta.
So we have been given that, cosecθ - cotθ = k.
According to our known trigonometric identity we know that,
cosec²θ - cot²θ =1
Now proceeding with this identity, we first break the identity:
=> cosec²θ - cot²θ =1
=> (cosecθ - cotθ)(cosecθ + cotθ) = 1
We will replace the value of cosecθ - cotθ here by k which is known to us.
=> k(cosecθ + cotθ) =1
=> cosecθ + cotθ = 1/k
Hence we needed to find the value of cosecθ + cotθ which comes out to be 1/k.
Therefore cosecθ + cotθ = 1/k.
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