Answer:
The correct option is d
d) (√2 - √6)/4
Step-by-step explanation:
The term given in the question is:
cos (-7π/12)
Solve the term by using scientific calculator:
cos (-7π/12) = (1 / 2√2) - (√3 / 2√2)
Mulitplying and dividing both terms on the right hand side of equality with 2√2:
(1 / 2√2) - (√3 / 2√2) = (1 / 2√2)(2√2 / 2√2) - (√3 / 2√2)(2√2 / 2√2)
(1 / 2√2)(2√2 / 2√2) - (√3 / 2√2)(2√2 / 2√2) = 2√2 / (2√2)² - (2√2)(√3) / (2√2)²
2√2 / (2√2)² - (2√2)(√3) / (2√2)² = 2√2 / (4)(2) - 2√6 / (4)(2)
2√2 / (4)(2) - 2√6 / (4)(2) = √2/4 - √6/4
√2/4 - √6/4 = (√2 - √6)/4
Answer:
bleh
Step-by-step explanation:
5×1+3×1/10 +8×1/100+4×1/1000 write i dont konw i am just doing this for points
Option b. -2 is the output of the function
Answer:
x = -5
Step-by-step explanation:
x = -5 because a horizontal line does not change in y value
Find the volume of the parallelepiped with adjacent edges PQ, PR, and PS. P(1, 0, −1), Q(3, 3, 0), R(3, −3, 0), S(1, −2, 2)
topjm [15]
Answer:
the volume of the parallelepiped is = 36
Step-by-step explanation:
given,
P(1, 0, −1), Q(3, 3, 0), R(3, −3, 0), S(1, −2, 2)
PQ = Q - P = (2, 3, 1)
PR = R - P = (2, -3 , 1)
PS = S - P = (0, -2 , 3)
now volume of parallelopiped
[PQ PR PS] =
now calculating determinant of the matrix
= 2 (-9+2) - 3 (6-0) + 1 (-4-0)
= -14 - 18 - 4
= -36
hence , the volume of the parallelepiped is = 36