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3 years ago

Sinxcosxtanx=1-cos^2x

Mathematics

1 answer:

ycow [4]3 years ago

7 0

Step-by-step explanation:

$sin x \: cos x \: tanx = 1 - {cos}^{2} x \\ LHS \\= sin x \: cos x \: tanx \\ =sin x \: cos x \: \times \frac{sin x}{cos x} \\ = sin x \: \times \frac{sin x}{1} \\ ={sin}^{2} x \\ = 1 - {cos}^{2} x \\ = RHS \\ \therefore \: sin x \: cos x \: tanx = 1 - {cos}^{2} x \\ Hence \: Proved.$

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2 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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2 years ago

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lubasha [3.4K]

Answer: $x\geq 13$

Step-by-step explanation:

Given

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adding both side 7

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3 years ago

2) In a set of data that show a normal distribution the mean is 7.8 and the standard deviation is 1.7. What is the proportion of

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First, we get the z-score using formula:
z =( X - μ ) / σ

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3 years ago