please say answer of all three please
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Q12 Ans is 0
Step-by-step explanation:
tan²10 - cot²80
By using the formula tan= cot(90-Thetha)
tan²(90-10)-cot²80
=cot²80-cot²80
0
Q13 Answer is 43
By using the formula Mode= 3 Median - 2 Mean
50.5=3×45.5-2 Mean
50.5=136.5-2mean
-86=-2 Mean
-86/-2= Mean
43= Mean
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