exam
Maths Puzzle
Numerical Ability
I am a rectangle. my area is 36 cm2. My lenght is 12 cm. What is my width? Explain how you decide.
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exam Other Question
Verify the identity using multiple-angle formulas.
1a) cos^(2)3x-sin^(2)3x=cos6x
1b) (sin^(2)2α)/(sin^(2)α)=4-4sin^(2)α
I am using the Distributive property here, and i have to simplify each expression. This problem has me stumped.
3(e-4f-ef)
Suggestions? Thank you.