Evaluating an Expression
Evaluate the expression without using a calculator
The answer of the expression is 1
A trigonometric expression is given as .
Use trigonometric ratios to simplify the equation. Replace the values of the ratios in the expression and do the computation.
The given expression is , substitute the values as-
Deviation of a Laser Beam A laser beam is to be directed toward the center of the moon, but the beam strays from its intended path. (a) How far has the beam diverged from its assigned target when it reaches the moon? (The distance from the earth to the moon is 240,000 mi.) (b) The radius of the moon is about . Will the beam strike the moon?
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