abovethecl0uds
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#1
Report Thread starter 1 month ago
#1
could someone help me out with 5c please?
i've attached my answers for 5a and 5b just in case they need to be used to work out 5c
thanks
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Last edited by abovethecl0uds; 1 month ago
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Faith&hardwork
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#2
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#2
(Original post by abovethecl0uds)
could someone help me out with 5c please?
i've attached my answers for 5a and 5b just in case they need to be used to work out 5c
thanks
Name:  20211021_213823.jpg
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Size:  22.0 KB
Name:  20211021_213848.jpg
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Hey, for an inverse function , The domain is the range of the original function and the range is the domain of the original function
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abovethecl0uds
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#3
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#3
(Original post by Faith&hardwork)
Hey, for an inverse function , The domain is the range of the original function and the range is the domain of the original function
hey!
thanks for your reply. i know that the domain and range swap around, but i don't know how to express that in terms of f^-1(x)
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Faith&hardwork
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#4
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#4
(Original post by abovethecl0uds)
hey!
thanks for your reply. i know that the domain and range swap around, but i don't know how to express that in terms of f^-1(x)
First start by separating the y from x, u should get a linear. eqn = trigonometry function....then replace y for x.... It then become clear
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awc14
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#5
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Try rearrange the equation to make x the subject, then replace your x with a y and vice versa!
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abovethecl0uds
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#6
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#6
(Original post by Faith&hardwork)
First start by separating the y from x, u should get a linear. eqn = trigonometry function....then replace y for x.... It then become clear
(Original post by awc14)
Try rearrange the equation to make x the subject, then replace your x with a y and vice versa!
this is what i've done, but i'm not sure what to do after this
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Last edited by abovethecl0uds; 1 month ago
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Faith&hardwork
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#7
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#7
(Original post by abovethecl0uds)
this is what i've done, but i'm not sure what to do after this
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Take the cosine of both sides...you will be left with y=cos....., hence replace y=f inverse
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abovethecl0uds
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#8
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#8
(Original post by Faith&hardwork)
Take the cosine of both sides...you will be left with y=cos....., hence replace y=f inverse
oh okay thanks so much for the help!
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