evaluate the following cosec² 30 degree. cos 60 degree. tan² 45 degree. sin 90 degree. sec² 45 degree. cot² 30 degree
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Answer:
12
Step-by-step explanation:
cosec²30⁰.cos60⁰.tan²45⁰.sin90⁰.sec²45⁰.cot²30⁰
=2²×1/2×1²×1×(sq.rt 2)²×(sq.rt 3)²
=4×1/2×1×1×2×3
=12
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