Question

Help with trig?
Match the right hand side to the left hand side of the equation.
cot(x)*sec^4(x)=cot(x)+2tanx+tan^3(x)

Answer 1

There's a good start.

Answer 2

Would you mind if i uploaded a picture of my work and you helped me find my mistake? c:

Answer 3

Ok

Answer 4

I keep getting cot(x)+tan^3(x)=cot(x)+2tan(x)+tan^3(x)

Answer 5

I would advise against splitting sec4x into 1+tan4x

Answer 6

okay, give me a minute to try your work c: Thank you by the way

Answer 7

Here, I have a better suggestion. Try to make the right side match the left. It's easier

Answer 8

Sorry, I honestly don't understand this. :c I feel like I'm missing something

Answer 9

oh wow. that was so much easier than i thought it was...i was reducing to the smallest possible simplification! but it was much easier than that

Answer 10

do u still need help?

Answer 11

@Adri1580

Answer 12

I just got it, but thank you for offering c:

Answer 13

do you want me to check to see if you wrote it correctly?

Answer 14

when u sent that picture, you assumed that the left hand side already equalled the right hand side. That is a big nono. always start from one side and try to reduce it and hopefully then it matches with the other side, which then you can say RHS=LHS

Answer 15

The left hand side does equal the right hand side, the assignment is asking me to use the basic trig properties to prove that both sides are equal. I'm only suppose to alter one side, namely the left side. :o

Answer 16

yea yea but at the start never assume that both sides are equal...

Answer 17

always start with one side and then your simplification is ur proof

Answer 18

okay, thanks

Answer 19

come to exam time, you will lose some marks because ur clarification is incorrect. just look for what the question wants you to answer

Answer 20

do you want me to show how you would answer it properly?

Answer 21

most students set these type of problems incorrectly

Answer 22

if you want I'll show you my new work and you tell whether or not its wrong

Answer 23

alrighty

Answer 24

sorry that its messy >.<

Answer 25

yea good u could do it much easier, but with the last line you should write

cotx+2tanx+(tanx)^3=RHS
therefore LHS=RHS as required.