Question

prove that 4sin30° sin²60° + 3cos60° tan45° = 2sec²60°- cosec²90°
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Answer 1

Answer:

MY DEAR THIS IS THE ANSWER

Answer 2

Step-by-step explanation:

Solution:-

4 Sin 30°Sin²60°+3 Cos60°tan45°

=>4(1/2)(√3/2)²+3(1/2)(1)

=>4(1/2)(3/4)+3(1/2)

=>12/8+3/2

=>3/2+3/2

=>(3+3)/2

=>6/2

=>3......(1)

RHS:-

2 sec²60°-Cosec²90°

=>2(2)²-1²

=>2(4)-1

=>8-1

=>7-------(2)

From (1)&(2) LHS≠RHS

If RHS may be 2Sec60°-Cosec²90°

=>2(2)-1²

=>4-1

=>3

then LHS =RHS