Special Rules:

1. limx→axn−anx−a=na(n−1)limx→axn−anx−a=na(n−1), for all real values of n.
2. limθ→0sinθ/θ=1 limθ→0 sin⁡θ/θ=1
3. limθ→0tanθ/ θ=1 limθ→0tan⁡θ/θ=1
4. limθ→01−cosθ/θ=0 limθ→01−cos⁡θ/θ=0
5. limθ→0 cosθ=1 limθ→0 cos⁡θ=1
6. limx→0ex=1limx→0ex=1
7. limx→0ex−1x=1limx→0ex−1x=1
8. limx→∞(1+1x)x=e

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