Mathematics, 23.05.2021 14:00 samueltaye
Please help me on this. pls pls pls proper answers
1 ) prove that h²(cot² α - cot² β) = 2α²
2 ) if α=20°, β=30°, AC=360m, find height PQ
Answers: 2
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Choose the correct classification of 3x4 − 9x3 − 3x2 + 6. 5th degree polynomial 4th degree polynomial 9th degree polynomial 24th degree polynomial
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Identify the number as a rational or irrational.explain. 127
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The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
Please help me on this. pls pls pls proper answers
1 ) prove that h²(cot² α - cot² β) = 2α²
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