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Please clear my confusion about find value of tan7.5 °.
What`s your confusion with tan7.5° .Kindly elaborate that where you have stuck?.If you will elaborate then I can help you better.
Yaa... tan15°=2tan7.5°∕1-tan²7.5° ⇒2-√3=2tan7.5°/1-tan²7.5° . By solving this eq i got value of tan7.5°= (√2-1)(2+√3) . But Ans is (√3-√2)(√2-1). How?
@ ankit u have to apply the following formula sin ( a/2 ) = [(1-cosa)/2] ^ ½ cos a/2 = [(1+cosa)/2] ^ ½ tan 2a = [2 tan a ] / [1+tan square (a) ] answer is = root6-root3 +(root 2 ) -2 HOPE IT CLEARS YOUR DOUBT ALL THE BEST ..
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