Evaluate: sec2 45 cot2 30 − 1 + cosec2 45 tan2 60 +1
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Answered by
2
we know that sec45=√2,cot30=√3,cossec45=√2,tan60√3.
sec²45cot²30-1+cosec²45tan²60+1
=(√2)²×(√3)²-1+(√2)²×(√3)²+1
=2×3-1+2×3+1
=5+7
12....
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Answered by
0
Answer:
12
Step-by-step explanation:
sec² 45°= √2
cot² 30°= √3
cosec² 45°= √2
tan² 60°= √3
Substituting all values we get,
= (√2)²(√3)² -1 + (√2)²(√3)² +1
= 2(3) -1 + 2(3) + 1
= 6+ 6 - 1 + 1
=6+6
=12
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