Without using trigonometric tables, find the value of the following expression:sec 90° θ cosec θ tan 90° θ cot θ + cos2 25° + cos2 65° 3 tan 27° tan 63°

Without using trigonometric tables, find the value of the following expression:sec 90° θ cosec θ tan 90° θ cot θ + cos2 25° + cos2 65° 3 tan 27° tan 63°
Without using trigonometric tables- find the value of the following expression-sec 90- - cosec - - tan 90- - cot - - cos2 25- - cos2 65- 3 tan 27- tan 63

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Without using trigonometric tables, the value of ( cot theta tan ( 90 - theta ) - sec ( 90 - theta ) csc theta + sqrt { 3 } tan 12 cdot tan 60 ^ { circ } times tan 78 ^ { circ } )

सिद्ध कीजिए कि (cos^(2)25^(@)+cos^(2)65^(@))+cosectheta*sec(90^(@)

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