Solution
Solution
+1
Decimal Notation
Solution steps
Rewrite using trig identities:
Use the Angle Difference identity:
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Simplify
Multiply fractions:
Multiply:
Multiply the numbers:
Multiply fractions:
Multiply the numbers:
Simplify
Apply radical rule:
Multiply the numbers:
Apply rule
Popular Examples
Frequently Asked Questions (FAQ)
What is the value of cos(45-60) ?
The value of cos(45-60) is (sqrt(2)+sqrt(6))/4