Goneomtrie wiskunde
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Last updated 10:47 AM on 2/10/26
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15 Terms
1
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sin2x
2sinx.cosx
2
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sin²x
(1-cos2x)/2
3
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cos²x
(1+cos2x)/2
4
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1) cos2x
cos²x-sin²x
5
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2) cos2x
2cos²x -1
6
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3) cos2x
1 - 2sin²x
7
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sin²(x) + cos²(x)
1
8
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sin(α+β)*
sin(α)cos(β) + cos(α)sin(β)
9
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sinx /cosx
tanx
10
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cosx/sinx
cotx
11
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𝑠𝑖𝑛(𝛼−𝛽)*
𝑠𝑖𝑛(𝛼)𝑐𝑜𝑠(𝛽)−𝑐𝑜𝑠(𝛼)𝑠𝑖𝑛(𝛽)
12
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𝑐𝑜𝑠(𝛼+𝛽)*
𝑐𝑜𝑠(𝛼)𝑐𝑜𝑠(𝛽)−𝑠𝑖𝑛(𝛼)𝑠𝑖𝑛(𝛽)
13
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𝑐𝑜𝑠(𝛼−𝛽)*
𝑐𝑜𝑠(𝛼)𝑐𝑜𝑠(𝛽)+𝑠𝑖𝑛(𝛼)𝑠𝑖𝑛(𝛽)
14
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1/cotx
tanx
15
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1/tanx
cotx
