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anonymous
 one year ago
Prove: tan^2 θ•cos^2 θ + cos^2 θ = 1. You must show all work. any help please?
anonymous
 one year ago
Prove: tan^2 θ•cos^2 θ + cos^2 θ = 1. You must show all work. any help please?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay so this is what grade?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2write tan^2 in terms of sin cosine tan = what ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is 11th grade math. trigonometry in Algebra 2

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2alright first you need to know the definition of sin /cos and tan 1/csc ,1/ sec ,1/cot are reciprocal of sin , cos and sin \[\tan =\frac{ 1 }{ \cot }\] or you can say tan =sin/cos same thing

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2\[\tan=\frac{ \sin }{ \cos } ~~~\cos= \frac{ 1 }{ \sec }~~~\sin=\frac{ 1 }{ \csc }\] for that question we just need tan=sin/cos

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2\[\huge\rm \color{ReD}{tan^2 \theta} • \cos^2 \theta+\cos^2 \theta=1\] we can rewrite tan^2 in terms of sin cosine \[\huge\rm \color{Red}{\frac{ \sin^2 \theta }{ \cos^2 \theta }}• \cos^2 \theta+\cos^2 \theta=1\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0which would eliminate the cos^2

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2yes right \[\huge\rm \color{Red}{\frac{\sin^2 \theta }{\cancel{ \cos^2 \theta} }}• \cancel {\cos^2 \theta}+\cos^2 \theta=1\] left with \[\huge\rm\color{blue}{ sin^2 \theta +\cos^2} =1\] you should b familiar with that special identity

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2sin^2 +cos^2 equal to what ??

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.0hey m jst guessing ( ͡° ͜ʖ ͡° )
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