SOLUTION: Show all steps for finding the exact value of cos(62 degrees) - sin(28 degrees). We are not allowed to use a calculator.
Algebra.Com
Question 597526: Show all steps for finding the exact value of cos(62 degrees) - sin(28 degrees). We are not allowed to use a calculator.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Show all steps for finding the exact value of cos(62 degrees) - sin(28 degrees).
-------------
62 = 90 - 28 --> cos(62) = sin(28)
----
sin(28) - sin(28) = 0
RELATED QUESTIONS
How do you find the exact value of sin 17 degrees cos 28 degrees + cos 17 degrees sin 28... (answered by Fombitz)
Find the exact value of the expression without a calculator.
{{{sin^2(40 degrees) +... (answered by greenestamps)
find the exact value of cos 105 degrees WITHOUT USING TABLES OR A CALCULATOR. be sure to... (answered by venugopalramana)
Use an identity to find the exact value of each expression:
Note: You are not allowed... (answered by Fombitz)
find the exact value of the expression. do not use a calculator
sin(-4pi) + cos... (answered by lwsshak3)
Use the CAST rule to state the sign of each value. Check using calculator.
(a) tan 15... (answered by MathLover1)
Use the half angle formulas to find exact value:
SIN 210 degrees
COS 60... (answered by lwsshak3)
Use an addition or subtraction formula to write the expression as a trigonometric... (answered by stanbon)
use reference angle theorem to find the exact value of each trig function:
cos 300 (answered by stanbon)