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junior college 1 | H1 Maths
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How do g and h
Date Posted: 6 years ago
Views: 409
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For g how do u get = e^x? Can explain
How do u change 1 to bexome e^x . If u bring it from the left handside to the rhs theres 2 e^-x ? How come it become one and positve
Multiply thoughout by e^x.
From your laws of indices:
e^x * e^-x = e^(x-x) = e^0 = 1
From your laws of indices:
e^x * e^-x = e^(x-x) = e^0 = 1
Wait but you didnt get 1 u get e^x ? I cannot understand liao Can explain ols
e^x * 1 = e^x
e^x * (e^-x)(dy/dx) = dy/dx
e^x * (e^-x)y = y
Because e^x * e^-x = e^(x-x) = e^0 = 1
e^x * (e^-x)(dy/dx) = dy/dx
e^x * (e^-x)y = y
Because e^x * e^-x = e^(x-x) = e^0 = 1
What dors the 2nd and 3rd line refers to
The 2nd line of my working, like what's happening on the LHS.
Can u check for me my ans for h pls
done
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Is this right
Date Posted:
6 years ago
In short, nope
Huh why . Help me liao leh . I dont get it why u put the 1/x outside the whole thing. Doesnt 1/x only belongs to cosx ?
Go see my new post
Anw I got that 1/x cus I made y the subject, you can let y be the subject it's fine. Just my preference
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Don't mess up on your expansion!
Date Posted:
6 years ago
Omg i finally realised my mistake walao :_: thanks for helping me liao ;;
If you need tuition for math, you know who to look for lel ;)
Thank you! Can help me another Q pls :_: idky i keep on getting stuck
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