Any innovative idea for 82 question.
Answer is option A
Getting 1st option by putting every thing =π/4
see the jension inequality will help with little more approximation
not exact jension but by symmatri i thought of this concept
Do you need some alternate method or just quick answer ? For quick answer you can put a value and check
I thought of this but how can we be sure that for other value the exception will not be there.
Thanks a lot @Tanmay_1 Sir
See , if it’s single correct then for sure it should be A and then you simply can move forward to other questions during exam but if it is multiple correct type , then this trick won’t work .
Putting and checking isn’t a method to solve the question , it is just that during exam , it doesn’t matter that you solved the question and got the answer or you simply applied some ‘jugaad’ . So obviously you should not do such things while practising at home , but during exam , for sure such things should be used .