Answer:
cot is adjacent/opposite. Therefore:
adjacent = 3
opposite = 7
cos is adjacent./hypotenuse. We can use the Pythagorean theorem to find the hypotenuse.
a2+b2=c2
32+72=c2
9+49=c2
58=c2 Take the square root of both sides
√58=c
cos = 3/√58 To rationalize, multiply the numerator and denominator by √58
cos = (3/√58)(√58/√58) = 3√58/58
Step-by-step explanation:
