Question

evaluate 5 Cot^230°+cosec^245°

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Answer 1

cot30=√3

cosec45=√2

now,

(cot30)^2=3

(cosec45)^2=2

5(cot30)^2+(cosec45)^2=5(3)+2

=17

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Answer 2

Step-by-step explanation:

cot30°=√3,

cosec45°=√2

now(cot30)^2=3

(cosec45°)^2=2

than,

5(cot30°)^2+(cosec45°)^2

5(3)+2

15+2

17

hope it helps you.. ..