Question

URGENT CASE, need help please, Trigonometric Functions

Answer 1

`\displaystyle 3,8 ≈ AC`

Explanation:

`\displaystyle (4)/(AC) = csc\:70 \hookrightarrow ACcsc\:70 = 4 \hookrightarrow (4)/(csc\:70) = AC \hookrightarrow 3,7587704831... = AC \\ \\ 3,8 \approx AC`

OR

`\displaystyle (AC)/(4) = sin\:70 \hookrightarrow 4sin\:70 = AC \hookrightarrow 3,7587704831... = AC \\ \\ 3,8 \approx AC`

Information on trigonometric ratios

`\displaystyle (OPPOCITE)/(HYPOTENUSE) = sin\:θ \\ (ADJACENT)/(HYPOTENUSE) = cos\:θ \\ (OPPOCITE)/(ADJACENT) = tan\:θ \\ (HYPOTENUSE)/(ADJACENT) = sec\:θ \\ (HYPOTENUSE)/(OPPOCITE) = csc\:θ \\ (ADJACENT)/(OPPOCITE) = cot\:θ`

I am joyous to assist you at any time.