Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite using trig identities
Use the Double Angle identity:
Use the Double Angle identity:
Simplify
Apply Perfect Square Formula:
Simplify
Apply rule
Multiply the numbers:
Apply exponent rule:
Apply exponent rule:
Multiply the numbers:
Expand
Distribute parentheses
Apply minus-plus rules
Simplify
Multiply the numbers:
Multiply the numbers:
Simplify
Group like terms
Add/Subtract the numbers:
We showed that the two sides could take the same form
Popular Examples
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Frequently Asked Questions (FAQ)
Is cos(4B)=1-8sin^2(B)+8sin^4(B) ?
The answer to whether cos(4B)=1-8sin^2(B)+8sin^4(B) is True