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CBSE Class 12-science Answered

Inverse Trignometric Functions
Asked by | 03 Sep, 2009, 05:35: PM
answered-by-expert Expert Answer

sin (sin-1(1/5) + cos-1(x)) = 1

(sin-1(1/5) + cos-1(x)) = sin-1(1)

sin-1(1/5) + cos-1(x) = /2

Now by using the property,

sin-1(x) + cos-1(x) =  /2

⇒ x = 1/5

Similarly try the second question.

In case of multiple questions within a query, please post each question individually and let us know where you are getting stuck so that we would be able to explain things better.

Answered by | 05 Sep, 2009, 12:16: PM
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