Tee Yuan Qin's answer to Rella's Junior College 1 H2 Maths Singapore question.
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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.
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.
Date Posted:
2 years ago
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