Question

Using scales of 1cm to 30° on the x axis and 2cm to 1 unit on the y axis,draw the graph of y=sin 0 for 0°less than or equal to 0 less than or equal to 360°.Using the graph to a)find the equation b) solve the equation i)sin0=0.6 ii)4sin0=-3​
Help me and will mark brainlest

Answer 1

Answer:

Attachment 1:  graph of $y=\sin(\theta)$

(using given scale)

Question (a) (Attachment 2)

$\sin(\theta)=0.6$

Draw the line $y=0.6$ (shown in blue).

Find the points of intersection of the sine curve and the line.

Measure to find the values of $\theta$

$\theta=37^{\circ},143^{\circ}\:\textsf{(nearest degree)}$

Question (b) (Attachment 3)

$4\sin(\theta)=-3$

$\implies \sin(\theta)=-\dfrac34$

Draw the line $y=-\dfrac34$ (shown in red).

Find the points of intersection of the sine curve and the line.

Measure to find the values of $\theta$

$\theta=229^{\circ},311^{\circ}\:\textsf{(nearest degree)}$