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Mathematics

1 answer:

Fofino [41]3 years ago

4 0

9514 1404 393

Answer:

1.1.1 sin(241°) = -√t

1.1.2 cos(61°) = √(1 -t)

Step-by-step explanation:

Given:

sin(61°) = √t

Find:

1.1.1 sin(241°)

1.1.2 cos(61°)

Solution:

1.1.1 sin(180° +x) = -sin(x)

sin(241°) = -sin(61°) = -√t

1.1.2 cos(x) = √(1-sin²(x))

cos(61°) = √(1 -(√t)²) = √(1 -t)

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