What is sin(x)sin(90-x) ?

The solution to sin(x)sin(90-x) is sin(x)cos(x)

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simplify sin(x)sin(90-x)

simplify

sin (x) sin (9 0^{\circ} - x)

sin (x) cos (x)

Solution steps

sin (x) sin (9 0^{\circ} - x)

Rewrite using trig identities

= sin (x) cos (x)

f (x) = csc (\frac{1}{3}) x - 2

sin (9 0^{\circ} - x) + cos (y + z)

\frac{cos ( nπ )}{nπ}

sin (arctan (\frac{L}{z}))

θ cos (- 77 0^{\circ})