Evaluate cos^2(pi/12). a)1/4 b)(2+sqrt3)/4** c)3/2

Find the exact solution(s) of the system: x^2/4-y^2=1 and x=y^2+1A)(4,sqrt3),(4,-sqrt3),(-4,sqrt3),(-4,-sqrt3)
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2. asked by Jon
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Find the exact solution(s) of the system: x^2/4-y^2=1 and x=y^2+1A)(4,sqrt3),(4,-sqrt3),(-4,sqrt3),(-4,-sqrt3)
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2. asked by Jon
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(sqrt3 + 5)(sqrt3 -3) ?multiply that out sqrt3*sqrt3 -3sqrt3 +5sqrt3 -15 now combine and simplify terms. yes the problems is:
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2. asked by Jasmine20
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Find a polynomial function of degree 3 with the given numbers as zeros.-5, sqrt3, -sqrt3 Would this work as a function for this
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2. asked by Alyssa
3. 740 views
Write the expression and evaluate. There is only one answer whIch should match the range of the inverse trig function.Sec^-1(-2)
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2. asked by Anonymous
3. 591 views
Assume that no denominator equals 0.sqrt12 - sqrt18 + 3sqrt50 + sqrt75 = (sqrt2^2*3) - (sqrt2*3^2) + (3sqrt2*5^2) + (sqrt3*5^2)
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2. asked by Jon
3. 719 views
Rationalize denominator, all variables positive real numbers and denominator is not zero.sqrt3/3 sqrt2 - sqrt3
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2. asked by Lori
3. 684 views
Write the expression and evaluate. There should only be one answer which should match the range of the inverse trig function.Sec
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2. asked by Anonymous
3. 558 views
Evaluate the expressionsa. arctan(-(sqrt3)) b. Arctan(-(sqrt3)) and tell the difference between the two...
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2. asked by O
3. 484 views
rationalize the denominator of:(4 sqrt3+5sqrt 2)/(sqrt48 +sqrt18) (5 +sqrt3)/(7-4 sqrt3)
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2. asked by raghav
3. 564 views