Question

Please help! Will mark brainliest! :)

Answer 1

Answer:

Step-by-step explanation:

if t is in the 4th quadrant, sin(t) <0

$sin(t)\\=-\sqrt{1-cos^2(t)} \\\\=\sqrt{1-\dfrac{9}{49} } \\\\=-\sqrt{\dfrac{40}{49} } \\\\=-\dfrac{2*\sqrt{10} }{7}$

Answer 2

Answer: - 2/10

7

Step-by-step explanation: i cant write the right shapes because it isnt available on anybody's keyboard