Question

find the hcf of the following numbers using common factor methods 16 and 42
​

Answer 1

Step-by-step explanation:

Correct option is

A

1

tan45

∘

=1

sin30

∘

=

2

1

cos60

∘

=

2

1

∴

sin30

∘

+cos60

∘

tan45

∘

=

2

1

+

2

1

1

=

1

1

=1

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Answer 2

To find the HCF of 16 and 42, we will find the prime factorization of the given numbers, i.e. 16 = 2 × 2 × 2 × 2; 42 = 2 × 3 × 7. ⇒ Since 2 is the only common prime factor of 16 and 42. Hence, GCF (16, 42) = 2.