- Let cos x = 1/√ (37) with x in QIV and find the following. cot 2x?

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If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? I'm trying to find a compound that contains an alkaline earth metal and a polytomic ion and then finding its molar mass.? Could a black hole exist within the event horizon of a bigger black hole? What is the difference between an african kente hat and a kuli kofia koofi hat? Which pattern of speciation is most important in nature? Allopatric or sympatric why?