Solution
Solution
+1
Solution steps
Use the following trivial identity:
Simplify
Use the following trivial identity:
Rewrite using trig identities:
Simplify
Popular Examples
25cos(20)sqrt((1.8*sin(46))/(7.8^2-50.8))2(1)-2arctan(1)-ln(1^2+1)arctan((6sqrt(3))/6)arcsin(1/(2.2))
Frequently Asked Questions (FAQ)
What is the value of sin(pi)cos((2pi)/5)-cos(pi)sin((2pi)/5) ?
The value of sin(pi)cos((2pi)/5)-cos(pi)sin((2pi)/5) is (sqrt(2)sqrt(5+\sqrt{5)})/4