COS 80 / SIN 23 + COS 59* COSEC 31
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Answer:
answer is cos 80 +cos 67 whole upon cos 67
Step-by-step explanation:
cos 80 /sin 23 + cos 59 * cosec 31
cos 80 / cos 67 + cos 59 * sec 59
cos 80 / cos 67 + cos 59 * 1/ cos59
cos 80 / cos 67 + 1
(cos 80 + cos 67 ) / cos 67
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