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# Calculus lab qs

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3 weeks ago
 Calculus lab qs Hoping all is well.Im sorry this is short notice. I’ve just realized I have a calc lab tmr instead of next week. Is it possible for you to solve these as I am having trouble.It would mean a lot so I can practice them as 2 of them will be on the lab for assessment.Thanks a lot!!!Lab Questions (Jan 22-26 ) Question 1 Find the domain and range of $$f(x) = \sqrt{2+x-x^2}+1$$Question 2. Find the domain of $$\cos^{-1}(1-x^2)$$Question 3. Sketch y =—2 sin(2x) + 1. Question 4. Find all values of x in the interval from O to $$2\pi$$ satisfying the equation $2 = \cos(2x) = 3 \cos(x)$ Read 93 times 5 Replies

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wrote...
Educator
3 weeks ago Edited: 3 weeks ago, bio_man
 Q1.Method used: https://youtu.be/Z9eCNdteloE?si=0FqL1PoxLA4baJwW&t=168Q2.Q3.Method used: Q4.Attached.Method: Attached file  Quick Notes.pdf (81.84 KB) You must login or register to gain access to this attachment.
s.h_math Author
wrote...
2 weeks ago
 Im sorry bioman but for q4 it just shows me a black screen
wrote...
Educator
2 weeks ago
 Strange it works fine for me, here's a screenshot Attached file  Thumbnail(s): You must login or register to gain access to this attachment.
s.h_math Author
wrote...
2 weeks ago
 Thank you so much; I'm just working on number 4 now. I appreciate you helping me. The past couple of years have been beneficial bc you make sure I understand important concepts & linking your videos to this is a big bonus for me, as my math has always been weak.
wrote...
Educator
2 weeks ago
 no worries man! Can you respond to your other lab question?
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