❤1
❤1
[Poll Machine]
tan cos^-1 – sin cot^-1/2 = 0 এর মান নিচের কোনটি?
tan cos^-1 – sin cot^-1/2 = 0 এর মান নিচের কোনটি?
Anonymous Quiz
27%
1/2
20%
√5/2
47%
√5/3
7%
√5
❤1
[Poll Machine]
cos^-1 1/√5 – 1/2 sin^-1 3/5 + tan^-1 1/3 =?
cos^-1 1/√5 – 1/2 sin^-1 3/5 + tan^-1 1/3 =?
Anonymous Quiz
42%
tan^-2
33%
sin^-2
25%
cos^-2
0%
cot^-2
❤1
[Poll Machine]
sinθ= –1 হলে, θ এর সাধারণ মান
sinθ= –1 হলে, θ এর সাধারণ মান
Anonymous Quiz
15%
(4n+1)π/2
10%
π/2
75%
(4n–1)π/2
0%
(2n+1)π/2
❤1
❤1
❤1
[Poll Machine]
cos^-1 x + cos^-1 y= π/2 হলে, sin^-1 x + sin^-1 y কত?
cos^-1 x + cos^-1 y= π/2 হলে, sin^-1 x + sin^-1 y কত?
Anonymous Quiz
0%
0
6%
π/4
94%
π/2
0%
π
❤1
[Poll Machine]
sin^-1 x + sin^-1 y = π/2 হলে কোনটি সঠিক?
sin^-1 x + sin^-1 y = π/2 হলে কোনটি সঠিক?
Anonymous Quiz
13%
x + y = 1
88%
x^2 + y^2 = 1
0%
x^2 + y^2 = 0
0%
x–y = 1
❤1
❤1
❤1
❤1
❤1
❤1