Question

sin Q=4/5 find the value of 2tan²Q-1​

Answer 1

Two dice are thrown

∴ Sample space

S={(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),

(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),

(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}

∴n(S)=36

(1) A={(4,6),(5,5),(5,6),(6,4),(6,5),(6,6)}

n(A)=6

Answer 2

Answer:

sin Q=4/5 find the value of 2tan²Q-1

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