- Trig help plz?

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What is the difference between an african kente hat and a kuli kofia koofi hat? I need to describe two ways I would measure moles in chemistry lab and identify any equipment I would use? What town is this prefix number for 869 ? 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)? Multiply matrices A and B of any sizes legally (no size compatibility requirment). What kind of matrix multiplication am I?