There are 18 mathematics majors and 325 computer science majors at a college. a. In how many ways can two representatives be pic
1 answer:
Answer:
Step-by-step explanation:
Given
There are 18 Mathematics Majors and 325 computer science majors at a college
(A)Two Representative to be selected
no of ways in which 1 representative of Mathematics major can be selected is
no of ways in which 1 representative of Computer science major can be selected is
Total no of ways
(b)No of ways in which either a Mathematics or computer science major can be selected is
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Answer:
are corresponding angles and are congruent to each other.
are alternate exterior angles and thus congruent to each other.
are interior angles on the same side, and they are supplementary(sum=180°).
Step-by-step explanation:
Given:
Line
Line is traversal.
By angle properties we can name the angle relationship of given angle pairs.
are corresponding angles and are congruent to each other.
are alternate exterior angles and thus congruent to each other.
are interior angles on the same side, and thus they are supplementary.
Answer:
cot²x
Step-by-step explanation:
Using the identity
sin²x + cos²x = 1, then
1 - sin²x = cos²x
1 - cos²x = sin²x
Thus
=
= cot²x