altahirkozelchik
altahirkozelchik altahirkozelchik
  • 22-07-2019
  • Mathematics
contestada

HELP!!
Type the correct answer in the box, and .
If angle x is in the fourth quadrant and angle y is in the first quadrant, the value of is .

HELP Type the correct answer in the box and If angle x is in the fourth quadrant and angle y is in the first quadrant the value of is class=

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absor201
absor201 absor201
  • 22-07-2019

Answer:

1/2

Step-by-step explanation:

Given:

sinx=-1/2

cosy=√3/2

finding x

x=sin^-1(-1/2)

x=-π/6

x=-30°

finding y

cosy=√3/2

y=cos^-1(√3/2)

y=π/6

y=30°

Now finding cos(x-y)

cos(-π/6-π/6)

=cos(-π/3)

=1/2!

Answer Link
elpink25
elpink25 elpink25
  • 20-04-2021

Answer: 1/2

Step-by-step explanation: I got this right on Edmentum.

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Answer Link

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