If You Can Solve This, You'll Pass Trig Tomorrow.
Prof Yusuf Abdulrahman
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If You Can Solve This, You'll Pass Trig Tomorrow.
150 просмотров · 1 месяц назад
Prof Yusuf Abdulrahman
955 подписчиков
150 просмотров · 1 месяц назад
The t-formula question that destroys most students!
In this video, Prof. Yusuf breaks down this tricky Trigonometry problem step-by-step using the Weierstrass substitution:
t = tan(x/2).
Question:
If t = tan(x/2),
find the values of t which satisfy
(a + 2) sin x + (2a - 1) cos x = 2a + 1,
where a is a non-zero constant.
Hence find two acute angles which satisfy the equation when a = 1/√3.
What you’ll learn:
How to convert sinx and cosx using t =tan (x/2)
How to solve trig equations that look impossible
How to find acute angles when a = 1/√3
Exam tips for WAEC, NECO, JAMB and A-Level Math
If you’ve been struggling with t-formula / tan half-angle questions, this is the video for you.
Don’t forget to LIKE, SHARE and SUBSCRIBE for more solved past questions with Prof. Yusuf
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