Use a graphing utility to graph the two equations in the same viewing window. Use the graphs to determine whether the expressions are equivalent. Verify the results algebraically.
PLEASE HELP ME ON THIS.

y1 = sin x sec x, y2 = tan x

Question

Use a graphing utility to graph the two equations in the same viewing window. Use the graphs to determine whether the expressions are equivalent. Verify the results algebraically.
PLEASE HELP ME ON THIS.

y1 = sin x sec x, y2 = tan x

jdoe0001 · Answer

http://fooplot.com/#W3sidHlwZSI6MCwiZXEiOiJzaW4oeCkoMS8oY29zKHgpKSkiLCJjb2xvciI6IiNGQzFGMjYifSx7InR5cGUiOjAsImVxIjoidGFuKHgpIiwiY29sb3IiOiIjRDFCQzFCIn0seyJ0eXBlIjoxMDAwfV0- keep in mind that $\bf sec(x)=\cfrac{1}{cos(x)}$

jdoe0001 · Answer

notice the graph, they do overlap, thus they equal to each other

jdoe0001 · Answer

$\bf sin(x)sec(x)=tan(x)\ \quad \ \quad \
sin(x)\cdot \cfrac{1}{cos(x)}=tan(x)\implies \cfrac{sin(x)}{cos(x)}=tan(x)
$

so... what do you think?   are they equal?

anonymous · Answer

I think they are equivalent.

anonymous · Answer

Am I right?

anonymous · Answer

Alright i think its equivalent. thanks!

jdoe0001 · Answer

http://4.bp.blogspot.com/-BRwp_Rnuchw/TeQYG5xz-vI/AAAAAAAAABE/vSMzgcg7pJQ/s1600/5560%255B1%255D.gif

jdoe0001 · Answer

yeap