i don't know how do this, pls help somebody)))

Answer 1

[Image Analyst]

Did you try

d = 10.6
alpha = 50; % Or 1
ctga = whatever????
result = d^3 * ctga * sqrt(sind(alpha)^4 - cosd(alpha)^4);

I have no idea what OTBET means, and what the other a) and 6) numbers (after/below the equation) are for.

[aldiyar kurmangaliev]

Ответ - this is the result of the example

I have two tasks

a) d= 10.6

a= 50

b)d=e^2.3

a=1

anyway i can't do this work, pls help

Answer 2

[Walter Roberson]

syms c t g
d = sym(10.6)

d = 

a = sym(50);
eqn18 = d.^3 .* c .* t .* g .* a .* sqrt(sind(a).^4 - cosd(a).^4)

eqn18 = 

vpa(eqn18)

ans = 

Notice that α is given in degrees.

Be careful: the result in eqn18 is going to have units, that include degrees -- unles c, g, t have units that cancel out the degrees.