Trigonometry class 10

Which trigonometry ratio will be used in the given diagram to find r?

• sine

• cosine

• tangent

• all of these

Simplified value of sinx cosx { tanx + cotx } =

• sinx

• cosx

• tanx

• 1

• 0

• 1

• -1

• cannot be evaluated

(1 + cot x - cosec x ) ( 1 + tan x + sec x) =

• 0

• 1

• -1

• 2

• 0

• 1

• 2

• 3

Cot⁴ Θ – Cosec⁴ Θ + Cot² Θ + Cosec² Θ =

• 0

• 1

• -1

• 2

The value of x in the diagram is

• 8

• 12