Mathrules

28 Questions
1 Answers

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Help pretty please (Happy Black Friday)

Use Trigonometric identities to simplify Trigonometric Expressions.
1.

2. read more ..

Mathrules Nov 29, 2019

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Addition and subtraction identities

1. secx - sinx = (1 - sinx cosx)/cosx
2. sinx + tanx sinx = (sinx cosx + sin^2 x)/cosx
3. sec^2 x + cotx = (sinx + cos^3 x)/cos^2 x sinx

Mathrules Oct 28, 2019

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Please Please please help

1. Prove:
2. Prove: (secx cscx) / cotx = sec^2 x
3. Prove: (secx cscx )/ csc^2 x = tanx
4. Prove: (tan^2 x cosx)/ 2secx = 1/2 sin^2 x read more ..

Mathrules Oct 28, 2019

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Please Please please Help

Solve each triangle. Round your answers to the nearest tenth.
1) a = 28.9 in, b = 26.5 in , c = 21.5 in

2) In EFD, d = 48 cm , m E = 112° , f = 60 cm read more ..

Omi67 ●●●

Mathrules Oct 23, 2019

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Mathrules May 19, 2019

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I need help

If P(x) is the product of a linear polynomial and a cubic polynomial, how many roots does P(x) = 0 have?Explain

Mathrules May 19, 2019

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please help

explain why a polynomial equation with real coefficients and root 1-i must be of degree two or greater

Mathrules May 19, 2019

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sorry I'm new to this

MathrulesJul 2, 2018