If 0 less than or equal to theta less than or equal to π/4 such that cos^2 theta -sin^2theta =a and cos theta-sin theta,then find the relation between a and b.
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Cos^2 theta-sin^2theta=a
cos^2theta-sin^2theta can be written as (cos theta + sin theta)(cos theta-sin theta)
as it is given that cos theta-sin theta=b
(cos theta+sin theta)(b)=a
cos theta + sin theta=a/b
This process is 100% correct unless you have a mad teacher to award u a 1/2 mark for a 1 mark question
cos^2theta-sin^2theta can be written as (cos theta + sin theta)(cos theta-sin theta)
as it is given that cos theta-sin theta=b
(cos theta+sin theta)(b)=a
cos theta + sin theta=a/b
This process is 100% correct unless you have a mad teacher to award u a 1/2 mark for a 1 mark question
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