Seah Yu Siang's answer to Sally Tan's Junior College 1 H2 Maths Singapore question.

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Seah Yu Siang
Seah Yu Siang's answer
4 answers (Tutor Details)
Examination Tips: If this kind of "Hence" qns comes out, you can use the equation found in the question and derive the answer as much as possible. In Math, every step counts. Try to get at least every mark from the question itself.