Step-by-step explanation:
<em>Acute angles measure less than 90 degrees. Right angles measure 90 degrees</em>
Answer:
see explanation
Step-by-step explanation:
Consider the left side
1 + cot²A
= 1 + 
= 
= 
= cosec²A
= right side, thus proven
Answer:
one=12 sencond=1
Step-by-step explanation:
x=12
then,y=3
after that
first NUM,=12
second NUM=1
Y=k/x
2.5=k/6
k=15
wheny x=4, y=15/4
y=3.75