y=sqrt(2)*sin^2(x)
d/dx(y)=sqrt(2)*2*(sinx)*cosx
find tangent line at the point (pi/4,sqrt(2))
y=sqrt(2)[x-pi/4 +1]
Everything is correct checked with the computer too but when i graph it is not right

Question

y=sqrt(2)*sin^2(x)
d/dx(y)=sqrt(2)*2*(sinx)*cosx
find tangent line at the point (pi/4,sqrt(2))
y=sqrt(2)[x-pi/4 +1]
Everything is correct checked with the computer too but when i graph it is not right

zepdrix · Answer

Oh I think I see the issue maybe..

Your function doesn't pass through (pi/4, sqrt2)
It passes through (pi/4, sqrt2/2)

anonymous · Answer

yes you are right and to think this was on our test in collage

zepdrix · Answer

typo on test maybe? XDD oh boy

anonymous · Answer

thank you ,would probably have spent half an hour trying to figure out what i did wrong...