Simplify
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Original post by SophieL1996
2
So now you can simplify it fully
Original post by Robbie242
So now you can simplify it fully
2(sin^2\theta + cos^2\theta)=2 ? apparently the answer is 4
Original post by SophieL1996
2(sin^2\theta + cos^2\theta)=2 ? apparently the answer is 4
Original post by SophieL1996
2(sin^2\theta + cos^2\theta)=2 ? apparently the answer is 4
Use to help in your posts ... look at mine and Robbie's
Go back to your original question and see where this 2 fits in
Original post by Robbie242
Yes, remember the 2 from earlier? add that on
ah yes so it does =4, how come you add rather than subtract, as it was on the LHS and we are moving it to the right ?
Original post by SophieL1996
ah yes so it does =4, how come you add rather than subtract, as it was on the LHS and we are moving it to the right ?
In this case no, we are just simplifying which you can substitute 2 in instead of the
(edited 11 years ago)
Original post by Robbie242
In this case no, we are just simplifying which you can substitute 2 in instead of the [ex]2sin^2\theta + 2cos^2\theta
Ok thanks!
Original post by Robbie242
In this case no, we are just simplifying which you can substitute 2 in instead of the
could you help me with this one please?
Original post by SophieL1996
could you help me with this one please?
Using the rule appreciate that can be expressed as
Now you can get terms purely in terms of sin and that will help you cancel out terms as seen later
note that later you'll see
Original post by Robbie242
Using the rule appreciate that can be expressed as
Now you can get terms purely in terms of sin and that will help you cancel out terms as seen later
note that later you'll see
Now you can get terms purely in terms of sin and that will help you cancel out terms as seen later
note that later you'll see
I got to the point sin^4 theta + sin^2 theta - 2sin^2theta then I put it as sin^4 theta - sin^2 theta. where do I go from there?
Original post by SophieL1996
I got to the point sin^4 theta + sin^2 theta - 2sin^2theta then I put it as sin^4 theta - sin^2 theta. where do I go from there?
Expand and simplify. Hint: the will cancel out.
It's not purely because there's not a coefficient greater than 1 involved in the expansion of the bracket
(edited 11 years ago)
Original post by Robbie242
Expand and simplify. Hint: the will cancel out.
It's not purely because there's not a coefficient greater than 1 involved in the expansion of the bracket
It's not purely because there's not a coefficient greater than 1 involved in the expansion of the bracket
Oh yes thank you!!
Original post by SophieL1996
Oh yes thank you!!
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