Advanced Functions 7.5 Solving Linear Trigonometric Equations

Solving linear trig equations using some identities and rearranging equations like you used to do in grade 9. We will look at using sketches of the functions to determine the number of solutions and also work with both exact values and decimal answers. I will explain how to determine other solutions by using the period of the function in cases where the k value is not 1, and also talk about the importance of checking the domain restriction to the question.

[karakkids]

I stayed up last night 10 pm til 5 am this morning.. watched all of chapter 7...
Watch... Pause... Solve ...
It was fun ...
Very very useful... And unlike most of math vid... Not boring.. but fun

[adityakalra]

Thank you so much for this video! It really helped me prepare for my test tmrw! : )

[masaki_dot_com]

This is recent videos! This helped me a lot. We had supply teacher today and he barely explained the concept and equation with double angle was difficult to understand.
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My question is that the example with sin2x and cos2x, you got 4 answers( i understood the concept of adding period), and arent 5pi/8 and 13pi/8 in Quad 2 and 4 which tangent is negative? Can you explain about this?

[ShivayshKumar]

Hello Ms.Havrot, this video was amazing, while doing the homework problems in 7.5, i've been having a problem with question.12 pg.428, do you mind helping me out with that? Thanks so much for these videos btw!!

[deathreaper]

Great video! Just wondering, do we need to state restrictions for these?

[nanaboateng]

Hi ms,
i was wondering where the 5pi over 6 came from at 2:08

[steveorbe]

10:52 Isn't the period of the first function: tan 2x = 1 just *pi* ?

Since k = 2, and the formula for the period is: [ period = 2pi/k ],
hence the answer for the period should be: *pi* . ---->> period = 2pi/2 = *pi* .

That is, the *period* of tan (2x) = 1 is: *pi*, not pi/2 as you indicate on the video.

Unless, it takes tan(x) only *pi* to complete one cycle.

[mehedihossain]

Why were you able to make sin2x over cos2x = 1, I don't see that on the identities sheet provided from my teacher.

[yourslovinglyfriend]

Tysm Ms Havrot would have been failing math without you 🫂