Question

cosec 73°
cot 22°
(1)
sin 65°
cos 32°
+
cOS 25°
- sin 28° sec 62° + cosec2 30°
sin 58°
5.
(sin? 380 +​

Answer 1

Explanation:

simple way to solve short process

hence,since 380+380

760 answer ok

Answer 2

cosec 73° cot 22° (1) sin 65° cos 32° + cOS 25° - sin 28° sec 62° + cosec2 30° sin 58° 5 = sinx380

find x

sol:

x = 2 π n + sin^(-1)(1/380 (-75 (-1)^(37/45) (1 + (-1)^(16/45)) ° csc(2) - 1 - 1/2 (-1)^(31/36) (1 + (-1)^(5/18)) + ((-1)^(5/18) (1 + (-1)^(11/45)) (1 + (-1)^(5/18)) (1 + (-1)^(16/45)))/(2 (1 + (-1)^(17/90)) ((-1)^(11/45) - 1)))), n element Z

appox

x≈6.2832 n + 3.1302, n element Z

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