without using trigonometric table solve the following:
sin 65 ° /cos 25 ° + cos 32° / sin 58° - sin28°.sec 62° + cosec 30°
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Answered by
2
Formulas used =
1.Sin A = Cos(90 - A) and vice versa
2.Cos A = 1/Sec A and vice versa
3.Cosec 30 = 2
⇒sin 65 + cos 32 - sin28.sec62 + cosec 30
--------- ----------
cos 25 sin 58
Formulas Used Below 1 and 2
⇒sin 65 + sin(90 - 32) - cos(90 - 28). 1 + cosec 30
--------------- ---------------- ---------
sin(90 - 25) sin 58 cos 62
⇒sin 65 + sin 58 - cos 62. 1 + cosec 30
--------- -------- --------
sin 65 sin 58 cos 62
=1 + 1 - 1 + 2 ------[Cosec 30 = 2]
=1 + 2
=3
Hope u Understood
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1.Sin A = Cos(90 - A) and vice versa
2.Cos A = 1/Sec A and vice versa
3.Cosec 30 = 2
⇒sin 65 + cos 32 - sin28.sec62 + cosec 30
--------- ----------
cos 25 sin 58
Formulas Used Below 1 and 2
⇒sin 65 + sin(90 - 32) - cos(90 - 28). 1 + cosec 30
--------------- ---------------- ---------
sin(90 - 25) sin 58 cos 62
⇒sin 65 + sin 58 - cos 62. 1 + cosec 30
--------- -------- --------
sin 65 sin 58 cos 62
=1 + 1 - 1 + 2 ------[Cosec 30 = 2]
=1 + 2
=3
Hope u Understood
Mark This Brainliest if this Helped You
Thankx
Answered by
2
sin 65 ° /cos 25 ° + cos 32° / sin 58° - sin28°.sec 62° + cosec 30°
sin 65 / sin 65 + sin 58 / sin 58 - cos 62 * 1/cos 62 + 2
1 + 1 - 1 + 2
3
sin 65 / sin 65 + sin 58 / sin 58 - cos 62 * 1/cos 62 + 2
1 + 1 - 1 + 2
3
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