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junior college 1 | H2 Maths
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Rella
Rella

junior college 1 chevron_right H2 Maths chevron_right Singapore

Hi!! Can u help me with this qns pls? Thanku!!

Date Posted: 2 years ago
Views: 425

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Tee Yuan Qin
Tee Yuan Qin's answer
44 answers (Tutor Details)
1st
Take note that by using the given substitution, you have to substitute [dx] with [sec²θ dθ ].
Also take note that 1+tan²θ = sec²θ. This can be derived from basic trigonometric relationship (sin²θ +cos²θ =1) by dividing cos²θ throughout. Hope this helps.