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mica
 2 years ago
need help im stuck
i need to prove that
(1tan x)(1+tan x) = (12sin^2x)(sec^2x)
mica
 2 years ago
need help im stuck i need to prove that (1tan x)(1+tan x) = (12sin^2x)(sec^2x)

This Question is Closed

mica
 2 years ago
Best ResponseYou've already chosen the best response.0i forgot to mention that i have to start on the left side x.x

mica
 2 years ago
Best ResponseYou've already chosen the best response.0i original problem is prove: cos2x = 1  tan^2x  1+tan^2x

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.1\[(1\frac{sinx}{cosx}){(1+\frac{sinx}{cosx})}\]\[(1\frac{\sin^2x}{\cos^2x})\]\[1\sin^2x \times \frac{1}{\cos^2x}\]\[(1\sin^2x)(\sec^2x).\]

mica
 2 years ago
Best ResponseYou've already chosen the best response.0aaaaaaaaaa lol gotcha xD thank you

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1\[(1+\tan(x))(1\tan(x))\] \[1\tan^2(x)\] \[1\frac{\sin^2(x)}{\cos^2(x)}\] He is right until this point.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Hint 1: Combine the fractions

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Hint 2: Rewrite the numerator in terms of sin by using the Pythagorean identity, \[\cos^2(x)=1\sin^2(x)\]

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1352617552352:dw

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Yes but that totally is not the same as (1sin^2(x))(sec^2(x))

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.1well, i can be wrong here because i'm only studying in middle school

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Recall the distributive property a(b+c)=ab+ac

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.11 is not being multiplied by sec^2(x) so you can not write (1sin^2(x))(sec^2(x))

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1@mica you leave already?

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Try not to give the full solution next time either even though you didn't do it this time because did it incorrectly anyways.

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.1He isn't worrying about his question :)

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.1Okay mam sorry. Thanx for the advice :)

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Scenario 1: He just copied what you had and left because he got what he thought he wanted. Scenario 2: He had chores.

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1We don't want Scenario 1. We want people to actually learn.

03225186213
 2 years ago
Best ResponseYou've already chosen the best response.0(cos^x−sin^2x)(sec^2x) cos^x=1sin^2x plug and get ans.
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