Question

if sun theta +cos theta =√2sintheta then prove that sun theta -cos theta = √2 cos theta​

Answer 1

Let us assume sin theta =a/b

We know sin theta=perpendicular/hypotenuse

So perpendicular is =a and hypotenuse is=b

By Pythagoras theorem we get value of base

Then put the value of base in cos thetha =base / hypotenuse

And we get value of costhetha as √{b²-a²}/b

Answer 2

Answer:

Answer in attachment.

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