HS = LS + 42
HS = 438
438 = LS + 42
438 - 42 = LS
396 = LS
Answer: The proofs are given below.
Step-by-step explanation: We are given to prove that the following statements are tautologies using truth table :
(a) ¬r ∨ (¬r → p) b. ¬(p → q) → ¬q
We know that a statement is a TAUTOLOGY is its value is always TRUE.
(a) The truth table is as follows :
r p ¬r ¬r→p ¬r ∨ (¬r → p)
T T F T T
T F F T T
F T T T T
F F T F T
So, the statement (a) is a tautology.
(b) The truth table is as follows :
p q ¬q p→q ¬(p→q) ¬(p→q)→q
T T F T F T
T F T F T T
F T F T F T
F F T T F T
So, the statement (B) is a tautology.
Hence proved.
Answer:
-2
Step-by-step explanation:
you have to rearange in the form of
y=mx+b, where m is the slope
y -6= -2( x-8)
y = 6 -2x + 16
y= -2x +22
slope is -2
Suppose

has two roots, reciprocals of one another. Call them

, with

.
Let's divide through

by

for now. By the fundamental theorem of algebra, we can factorize

as

Expand the RHS to get

so we must have


The first equation says

and

occur in a ratio of the negative sum of the roots of

, while the third equation says that the first and last coefficients

must be the same.
Answer:
45°
Step-by-step explanation:
Add both sides up then subtract it form 180°