document.write( "Question 882479: cos^2 30°×cos^2 45°+4sec^2 60°+1/2cos^2 90°-2×tan^2 60° \n" ); document.write( "
Algebra.Com's Answer #532886 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi,
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document.write( "θ	radians	sin θ	cos θ	tan θ
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document.write( "0°	0	0	1	0
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document.write( "30°	π/6	1/2	√3/2	√3/3
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document.write( "45°	π/4	√2/2	√2/2	1
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document.write( "60°	π/3	√3/2	1/2	√3
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document.write( "90°	π/2	1	0	─
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document.write( "(√3/2)^2(√2/2)^2 + 4(1/(1/2))^2 + (1/2)(0)^2 - 2(√3)^2
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document.write( "Or (cosx,sinx) Unit circle for reference
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