Question

10. Evaluate : (sin 70° + cos 20°)
(sec 70° + cosec 20°)
(tan 70° - cot 20°)​

Answer 1

Step-by-step explanation:

cos 20° +cos 20°

2 cos 20°

similarly

2Cosec 20°

and

2cot 20°

Answer 2

Answer:

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