• #### NDA Exam Mathematics Study Material

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a) Cos A
b) Cot A
c) Tan A
d) Sin A

a) 3
b) 4
c) 2
d) 1

a) √3
b) 1/√2
c) 1/√3
d) 1

a) 4
b) 5
c) 9
d) 1

a) 2
b) -1
c) 1
d) 0

a) H cot x + h
b) H cot x - h
c) H tan x - h
d) H tan x + h

a) -4
b) 4
c) ±4
d) ±2

a) 25/4 sq cm
b) 25/√3 sq cm
c) 25√3/sq cm
d) 25√3 sq cm

a) 30°
b) 45°
c) 60°
d) None of these

a) A = 2B
b) A = -2B
c) 2A = B
d) 2A = -B