Question

find the value of cos(-1020)​

Answer 1

Answer:

Cos(1020) = 0.500000000000

This is the same answer you will get if you have a scientific calculator set to DEG mode and then enter 1020 followed by the Cos button.

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

Given : find the value of cos(-1020)​

To find : find the value of cos(-1020)​

Solution :

Add full rotations of

360

° until the angle is between

0

° and

360

°.

cos

(

60

)

The exact value of

cos

(

60

)

is

1

2

.

1

2

The result can be shown in multiple forms.

Exact Form:

1

2

Decimal Form:

0.5

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