Problemas
ind the exact value of the following function without a calculator sin((pi )/(4)) sin((pi )/(4))=square (Simplify your answer.including any radicals. Use integers or fractions for any numbers in the expression.)
Roztwór
Lola
professionell · Tutor durante 6 años
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(179 Votos)
Respuesta
To find the exact value of
, we can use the unit circle and the properties of a 45-45-90 triangle.Step 1: Recall that the angle
radians is equivalent to 45 degrees.Step 2: In a 45-45-90 triangle, the lengths of the sides are in the ratio
. Step 3: The sine of an angle in a right triangle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse.Step 4: In this case, the side opposite the angle
is 1 and the hypotenuse is
.Step 5: Therefore,
.Step 6: To simplify the expression, we can rationalize the denominator by multiplying the numerator and denominator by
.Step 7:
.Answer:
.