3 years ago

True or False? Shapes that have no right angles also have no perpendicular segments.

Mathematics

2 answers:

frosja888 [35]3 years ago

4 0

I think this is True. Because Perpendiculer Lines Rely On Right Angles. :)

Keith_Richards [23]3 years ago

4 0

The answer is true I hope that's help.

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Verify that [tan(theta) + cot(theta)]^2 = sec^2(theta) + csc^2(theta)

Wittaler [7]

(tanθ + cotθ)² = sec²θ + csc²θ

Expand left side: tan²θ + 2tanθcotθ + cot²θ

Evaluate middle term: 2tanθcotθ = $2*\frac{sin\theta}{cos\theta}*\frac{cos\theta}{sin\theta}$ = 2

⇒ tan²θ + 2+ cot²θ

= tan²θ + 1 + 1 + cot²θ

Apply trig identity: tan²θ + 1 = sec²θ

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Apply trig identity: 1 + cot²θ = csc²θ

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prohojiy [21]

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2 years ago

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fiasKO [112]

Answer:

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