Evaluate: sin 70/ cos 20 + cosec36/ sec54 (for cbse class 10)
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Evaluate: sin 70/ cos 20 + cosec36/ sec54 (for cbse class 10)
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Answer:
2 is answer
Step-by-step explanation:
convert sin 70 into cos and cosec36 into sec
Answer:
ans = 2
Step-by-step explanation:
Sin70 = Sin (90-20) = Cos 20
Cosec 36 = Cosec(90-54) = Sec54
now
sin 70/ cos 20 + cosec36/ sec54
Cos20/Cos20 + Sec 54/ Sec 54
1 + 1 = 2