3 years ago

Solve the equation sin(x - 20°) = cos(42º) for x, where 0

Mathematics

1 answer:

fredd [130]3 years ago

8 0

Answer:

$x = 68$

Step-by-step explanation:

Sine are Cosine are Complementary Angles.

We can use this formula

$\sin(x) = \cos(y)$

when x+y=90.

Add the expressions in the parentents to 90 and solve for x.

$x - 20 + 42 = 90$

$x + 22 = 90$

$x = 68$

The answer is

$x = 68$

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