3rd problem questions of the night 3 (8+5cosx/sinx) + (5sinx/1+cosx) = 13cscx
whats the question?
Good point lol it says to verify the identity
ok easy said than done lets start.. should we?
Okay! I am about to go bed soon so is there any way you could send me a walk through please? If not I understand
iill write everything here step by step
Thank you very very much :)
\[\frac{ 5 \sin x }{ 1+\cos x }\times \frac{ 1-\cos x }{ 1-\cos x }=\frac{ 5\sin x \left( 1-\cos x \right) }{ 1-\cos ^2x }=\frac{ 5\sin x \left( 1-\cos x \right) }{ \sin ^2x }\] \[=\frac{ 5\left( 1-\cos x \right) }{ \sin x }\]
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all done ::D
just in case you didnt understand that 13/sinx is 13csc, remember that 1/sinx is cscx
Thank you so very much, this helped me a lot. xoxo
np
\[\frac{ 8+5\cos x }{ \sin x }+\frac{ 5(1-\cos x) }{ \sin x }=\frac{ 8+5\cos x+5-5\cos x }{ \sin x }=\frac{ 13 }{ \sin x }=13\csc x\]
Surjithayer, is this just a different way of doing it than magepker did it?
first i have solved second term only and made the denominator same as in first term.
same answer different approach, although @surjithayer 's is much faster, its technique used used when u master the basic step...
Its actually great that I have both of these so I can understand it from different ways. I really appreciate you both for taking the time to help me.
np anytime
yw
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