Question

find the value of tan 15 thita , tan 20 thita , tan 70 thita and tan 85 thita ​

Answer 1

Answer: 1

Step-by-step explanation:tan20 tan15 tan70 tan75

it can be written as

tan20 tan70 tan15 tan75

tan[90-70] tan70 tan[90-75] tan75

cot70 tan70 cot75 tan75

1/tan70 tan70 1/tan75 tan75 [ tan is same so, get cancel]

so, =1

hence the answer is 1

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