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in Trigonometry by (65.5k points)

Evaluate :

(i) \(\frac{sin18^o}{cos72^o}\)

(ii) \(\frac{tan26^o}{cot64^o}\)

(iii) cos 48° – sin 42° 

(iv) cosec 31° – sec 59°

1 Answer

+1 vote
by (65.2k points)
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Best answer

= cosec31° - cosec31°

= 0.

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