###### Asked in Math and Arithmetic, Algebra, Trigonometry

Math and Arithmetic

Algebra

Trigonometry

# Should we find cos theta if sec theta equals -10?

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## Answer

## Related Questions

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Now cos(theta) = 1/2 =>
theta = 60 + 360k
or
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while
Now cos(theta) = -1/2 =>
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(Sin theta + cos theta)^n= sin n theta + cos n theta

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sec A - 1/(sec A)
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The question contains an expression but not an equation. An
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The fourth
Across the quadrants sin theta and cos theta vary:
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cos theta: + - - +
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There is a hint to how to solve this in what is required to be
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If
a cos Î¸ + b sin Î¸ = 8
a sin Î¸ - b cos Î¸ = 5
then square both sides of each to get:
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the blocks starts to slide:
Let's first calculate:
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