Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 4 | E Maths
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Pls help
Date Posted: 4 years ago
Views: 174
See 2 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Coming soon
Date Posted:
4 years ago
Sure thanks! Hope rest of the answer will help me thx!
Thx
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Part iv is a bit unusual, but I am very sure that A + B will be 90 degrees in the calculation if we were to use a calculator and both angles A and B are acute.
Date Posted:
4 years ago
Can the last part be 1/tan (a+b)
= 1/(1/tanb) ->from part1
= tan b
=1/2
= 1/(1/tanb) ->from part1
= tan b
=1/2
I took it that part ii and the remaining parts are not related though, since the case in part ii leads to tan B = -1/3 whereas it is given for parts iii and iv that tan B = 1/2, so I presume they are meant for different parts
In short, the equation for part ii does not hold true for parts iii and iv, since the values for tan B are not the same for parts ii and iv.
Okay noted w thanks
360 Tutoring Program