7
(ক) 0
(খ) 1
বিষয়ঃগণি
সময়ঃ ৩০ মিনিট
1
১। যদি a2 + =2 হয় তাহলে a.
1
a2
(গ) 2 (ঘ) 3
২। 2x+2 =3 হলে 4x2 +
?
(ক) 4 (খ) 5 (গ) 6
৩। x+2= ?
(ক) 22 (খ) 2v3 (গ) 4V2 (ঘ)10
1
2.
x2
(ঘ)7
1
Answers
Answered by
1
Answer:
Trigonometry Ratios Table
Angles (In Degrees) 0° 30° 45° 60° 90° 180° 270° 360°
Angles (In Radians) 0° π/6 π/4 π/3 π/2 π 3π/2 2π
sin 0 1/2 1/√2 √3/2 1 0 -1 0
cos 1 √3/2 1/√2 1/2 0 -1 0 1
tan 0 1/√3 1 √3 ∞ 0 ∞ 0
cot ∞ √3 1 1/√3 0 ∞ 0 ∞
cosec ∞ 2 √2 2/√3 1 ∞ -1 ∞
sec 1 2/√3 √2 2 ∞ -1 ∞ 1
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