Can anyone help to solve the circled questions ?

yovaraj said:
Can anyone help to solve the circled questions below ?

View attachment 22992
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I'll start with the knowledge:

tan(A+B) = [tan(A) + tan(B)]/[1 - tan(A) * tan(B)]​

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:


Please share your work/thoughts about this problem.
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