Use trigonometric identities to transform the left side of the equation into the right side (0

Question

Use trigonometric identities to transform the left side of the equation into the right side (0 < θ < π/2). tan θ cosθ= sinθ

hartnn · Answer

on left side, use the standard relation that 
$\Large \tan \theta = \dfrac{\sin \theta }{\cos \theta }$

anonymous · Answer

This one's for tan theta cos theta = sin theta?

hartnn · Answer

yes, replace tan theta on left side by 
sin theta/ cos theta
notice that cos theta gets cancelled
what remains is sin theta
which is your right side. 
thats it!

anonymous · Answer

Oh, thank you! Sorry, I don't really know how to use this thing yet. By the way, I dig your profile pic!:)

hartnn · Answer

you're welcome ^_^
did you like it ? :)

anonymous · Answer

Yes!:3

hartnn · Answer

thanks you :)

anonymous · Answer

No problem!

anonymous · Answer

Could you help me with another problem?

anonymous · Answer

A steel plate has the form of one-fourth of a circle with a radius of 60 centimeters. Two two-centimeter holes are to be drilled in the plate positioned as shown in the figure. Find the coordinates of the center of each hole.

anonymous · Answer

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Sorry for my bad artistic skills. I hope you still understand it.