Question

Help with this trigonometry sum pleeeaase

Answer 1

Answer:

√3

Step-by-step explanation:

tan10 is the complimentary angle to cot80

tan20 is complimentary angle to cot70

so tan70. cot70. cot80. tan80 are gets cancelled so the remaining will be tan60

tn60=√3

and cot38 we can right as tan 52

so sec^2¤-tan^2¤=1

so √3/1=√3