Trigonometry
Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation sin^2(x) = cos^2(x/2)
Trigonometry
Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation cos^2(x) = sin^2(x/2)
Trigonometry
Show algebraically how to confirm that cos2x=cos^2x-sin^2x using the sum and difference identities
physics
if the swinging pendulum (pirate ship) swings on an arc with a radius of 10 meters, how much time does it take to swing through 5 swings?
Math
It cost your office $620 to mail 500 flyers. How much did it cost to mail each flyer?
chemistry
Na + H2O ¨ NaOH + H2 How many moles of H2 would be formed from 30 grams of Na in the following (UNBALANCED) equation?
graphs and angles
a survey about students government program at a school found that 120 students wanted an after school program and 240 students wanted durning school and 40 students wanted none, If a circle graph is made from this data, what would be the measure of the central angle for the af...
Early Childhood Literacy
Erikson's work identified:
Algebra
Haha its ok. Thanks for the help.
Algebra
Ay, my bad. Thanks :) and you mean x=5 or x=-4 right?
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